imx: imx8ulp: include pcc/cgc header in clock header

With this change, we no need to include pcc/cgc header files both.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
diff --git a/arch/arm/include/asm/arch-imx8ulp/clock.h b/arch/arm/include/asm/arch-imx8ulp/clock.h
index c0f32cc..d7c92f7 100644
--- a/arch/arm/include/asm/arch-imx8ulp/clock.h
+++ b/arch/arm/include/asm/arch-imx8ulp/clock.h
@@ -6,6 +6,9 @@
 #ifndef _ASM_ARCH_IMX8ULP_CLOCK_H
 #define _ASM_ARCH_IMX8ULP_CLOCK_H
 
+#include <asm/arch/pcc.h>
+#include <asm/arch/cgc.h>
+
 /* Mainly for compatible to imx common code. */
 enum mxc_clock {
 	MXC_ARM_CLK = 0,