clk: imx: add i.MX8MP clk driver

Add i.MX8MP clk driver for i.MX8MP CLK driver model usage

Signed-off-by: Peng Fan <peng.fan@nxp.com>
diff --git a/drivers/clk/imx/Makefile b/drivers/clk/imx/Makefile
index 222c5a4..255a87b 100644
--- a/drivers/clk/imx/Makefile
+++ b/drivers/clk/imx/Makefile
@@ -14,3 +14,5 @@
 				clk-composite-8m.o
 obj-$(CONFIG_$(SPL_TPL_)CLK_IMX8MN) += clk-imx8mn.o clk-pll14xx.o \
 				clk-composite-8m.o
+obj-$(CONFIG_$(SPL_TPL_)CLK_IMX8MP) += clk-imx8mp.o clk-pll14xx.o \
+				clk-composite-8m.o