global: Rename SPL_TPL_ to PHASE_

Use PHASE_ as the symbol to select a particular XPL build. This means
that SPL_TPL_ is no-longer set.

Update the comment in bootstage to refer to this symbol, instead of
SPL_

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/clk/Makefile b/drivers/clk/Makefile
index f9b90a3..7f84f22 100644
--- a/drivers/clk/Makefile
+++ b/drivers/clk/Makefile
@@ -4,13 +4,13 @@
 # Wolfgang Denk, DENX Software Engineering, wd@denx.de.
 #
 
-obj-$(CONFIG_$(SPL_TPL_)CLK) += clk-uclass.o
-obj-$(CONFIG_$(SPL_TPL_)CLK) += clk_fixed_rate.o
-obj-$(CONFIG_$(SPL_TPL_)CLK) += clk_fixed_factor.o
-obj-$(CONFIG_$(SPL_TPL_)CLK_CCF) += clk.o clk-divider.o clk-mux.o clk-gate.o
-obj-$(CONFIG_$(SPL_TPL_)CLK_CCF) += clk-fixed-factor.o
-obj-$(CONFIG_$(SPL_TPL_)CLK_COMPOSITE_CCF) += clk-composite.o
-obj-$(CONFIG_$(SPL_TPL_)CLK_GPIO) += clk-gpio.o
+obj-$(CONFIG_$(PHASE_)CLK) += clk-uclass.o
+obj-$(CONFIG_$(PHASE_)CLK) += clk_fixed_rate.o
+obj-$(CONFIG_$(PHASE_)CLK) += clk_fixed_factor.o
+obj-$(CONFIG_$(PHASE_)CLK_CCF) += clk.o clk-divider.o clk-mux.o clk-gate.o
+obj-$(CONFIG_$(PHASE_)CLK_CCF) += clk-fixed-factor.o
+obj-$(CONFIG_$(PHASE_)CLK_COMPOSITE_CCF) += clk-composite.o
+obj-$(CONFIG_$(PHASE_)CLK_GPIO) += clk-gpio.o
 
 obj-y += adi/
 obj-y += analogbits/
@@ -18,7 +18,7 @@
 obj-$(CONFIG_CLK_JH7110) += starfive/
 obj-y += tegra/
 obj-y += ti/
-obj-$(CONFIG_$(SPL_TPL_)CLK_INTEL) += intel/
+obj-$(CONFIG_$(PHASE_)CLK_INTEL) += intel/
 obj-$(CONFIG_ARCH_ASPEED) += aspeed/
 obj-$(CONFIG_ARCH_MEDIATEK) += mediatek/
 obj-$(CONFIG_ARCH_MESON) += meson/
@@ -42,7 +42,7 @@
 obj-$(CONFIG_CLK_OWL) += owl/
 obj-$(CONFIG_CLK_QCOM) += qcom/
 obj-$(CONFIG_CLK_RENESAS) += renesas/
-obj-$(CONFIG_$(SPL_TPL_)CLK_SCMI) += clk_scmi.o
+obj-$(CONFIG_$(PHASE_)CLK_SCMI) += clk_scmi.o
 obj-$(CONFIG_CLK_SIFIVE) += sifive/
 obj-$(CONFIG_CLK_SOPHGO) += sophgo/
 obj-$(CONFIG_CLK_SUNXI) += sunxi/
diff --git a/drivers/clk/exynos/Makefile b/drivers/clk/exynos/Makefile
index 734100e..7738586 100644
--- a/drivers/clk/exynos/Makefile
+++ b/drivers/clk/exynos/Makefile
@@ -7,6 +7,6 @@
 #   Thomas Abraham <thomas.ab@samsung.com>
 #   Sam Protsenko <semen.protsenko@linaro.org>
 
-obj-$(CONFIG_$(SPL_TPL_)CLK_CCF)	+= clk.o clk-pll.o
+obj-$(CONFIG_$(PHASE_)CLK_CCF)	+= clk.o clk-pll.o
 obj-$(CONFIG_CLK_EXYNOS7420)		+= clk-exynos7420.o
 obj-$(CONFIG_CLK_EXYNOS850)		+= clk-exynos850.o
diff --git a/drivers/clk/imx/Makefile b/drivers/clk/imx/Makefile
index 6d4bcd3..a89ee7a 100644
--- a/drivers/clk/imx/Makefile
+++ b/drivers/clk/imx/Makefile
@@ -2,25 +2,25 @@
 #
 # SPDX-License-Identifier: GPL-2.0
 
-obj-$(CONFIG_$(SPL_TPL_)CLK_CCF) += clk-gate2.o clk-pllv3.o clk-pfd.o
-obj-$(CONFIG_$(SPL_TPL_)CLK_IMX6Q) += clk-imx6q.o
+obj-$(CONFIG_$(PHASE_)CLK_CCF) += clk-gate2.o clk-pllv3.o clk-pfd.o
+obj-$(CONFIG_$(PHASE_)CLK_IMX6Q) += clk-imx6q.o
 obj-$(CONFIG_CLK_IMX8) += clk-imx8.o
 
 ifdef CONFIG_CLK_IMX8
 obj-$(CONFIG_IMX8QXP) += clk-imx8qxp.o
 obj-$(CONFIG_IMX8QM) += clk-imx8qm.o
 endif
-obj-$(CONFIG_$(SPL_TPL_)CLK_IMX8MM) += clk-imx8mm.o clk-pll14xx.o \
+obj-$(CONFIG_$(PHASE_)CLK_IMX8MM) += clk-imx8mm.o clk-pll14xx.o \
 				clk-composite-8m.o
-obj-$(CONFIG_$(SPL_TPL_)CLK_IMX8MN) += clk-imx8mn.o clk-pll14xx.o \
+obj-$(CONFIG_$(PHASE_)CLK_IMX8MN) += clk-imx8mn.o clk-pll14xx.o \
 				clk-composite-8m.o
-obj-$(CONFIG_$(SPL_TPL_)CLK_IMX8MP) += clk-imx8mp.o clk-pll14xx.o \
+obj-$(CONFIG_$(PHASE_)CLK_IMX8MP) += clk-imx8mp.o clk-pll14xx.o \
 				clk-composite-8m.o
-obj-$(CONFIG_$(SPL_TPL_)CLK_IMX8MQ) += clk-imx8mq.o clk-pll14xx.o \
+obj-$(CONFIG_$(PHASE_)CLK_IMX8MQ) += clk-imx8mq.o clk-pll14xx.o \
 				clk-composite-8m.o
-obj-$(CONFIG_$(SPL_TPL_)CLK_IMX93) += clk-imx93.o clk-fracn-gppll.o \
+obj-$(CONFIG_$(PHASE_)CLK_IMX93) += clk-imx93.o clk-fracn-gppll.o \
 				clk-gate-93.o clk-composite-93.o
 
-obj-$(CONFIG_$(SPL_TPL_)CLK_IMXRT1020) += clk-imxrt1020.o
-obj-$(CONFIG_$(SPL_TPL_)CLK_IMXRT1050) += clk-imxrt1050.o
-obj-$(CONFIG_$(SPL_TPL_)CLK_IMXRT1170) += clk-imxrt1170.o
+obj-$(CONFIG_$(PHASE_)CLK_IMXRT1020) += clk-imxrt1020.o
+obj-$(CONFIG_$(PHASE_)CLK_IMXRT1050) += clk-imxrt1050.o
+obj-$(CONFIG_$(PHASE_)CLK_IMXRT1170) += clk-imxrt1170.o
diff --git a/drivers/clk/ti/Makefile b/drivers/clk/ti/Makefile
index 07aa9a5..a58f19f 100644
--- a/drivers/clk/ti/Makefile
+++ b/drivers/clk/ti/Makefile
@@ -11,5 +11,5 @@
 obj-$(CONFIG_CLK_TI_GATE) += clk-gate.o
 obj-$(CONFIG_CLK_TI_MUX) += clk-mux.o
 obj-$(CONFIG_CLK_TI_SCI) += clk-sci.o
-obj-$(CONFIG_$(SPL_TPL_)CLK_K3_PLL) += clk-k3-pll.o
-obj-$(CONFIG_$(SPL_TPL_)CLK_K3) += clk-k3.o
+obj-$(CONFIG_$(PHASE_)CLK_K3_PLL) += clk-k3-pll.o
+obj-$(CONFIG_$(PHASE_)CLK_K3) += clk-k3.o