spl: dm: Kconfig: split CLK support for SPL and TPL

Introduce TPL_CLK to allow finer-grained selection of TPL features
for feature-rich (i.e. DM-based) TPL stages.

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
diff --git a/drivers/clk/Makefile b/drivers/clk/Makefile
index 159f285..b773593 100644
--- a/drivers/clk/Makefile
+++ b/drivers/clk/Makefile
@@ -5,7 +5,7 @@
 # SPDX-License-Identifier:      GPL-2.0+
 #
 
-obj-$(CONFIG_CLK) += clk-uclass.o clk_fixed_rate.o
+obj-$(CONFIG_$(SPL_TPL_)CLK) += clk-uclass.o clk_fixed_rate.o
 obj-$(CONFIG_ARCH_ROCKCHIP) += rockchip/
 obj-$(CONFIG_SANDBOX) += clk_sandbox.o
 obj-$(CONFIG_SANDBOX) += clk_sandbox_test.o