arm: imx: imx8m: Program CSU and TZASC if PSCI provider

In case U-Boot is the PSCI provider, it is necessary to correctly
program CSU and TZASC registers. Those are poorly documented, so
push in the correct values.

Signed-off-by: Marek Vasut <marex@denx.de>
diff --git a/arch/arm/include/asm/arch-imx8m/imx-regs.h b/arch/arm/include/asm/arch-imx8m/imx-regs.h
index 3034d28..1559bf6 100644
--- a/arch/arm/include/asm/arch-imx8m/imx-regs.h
+++ b/arch/arm/include/asm/arch-imx8m/imx-regs.h
@@ -31,6 +31,7 @@
 #define CCM_BASE_ADDR		0x30380000
 #define SRC_BASE_ADDR		0x30390000
 #define GPC_BASE_ADDR		0x303A0000
+#define CSU_BASE_ADDR		0x303E0000
 
 #define SYSCNT_RD_BASE_ADDR	0x306A0000
 #define SYSCNT_CMP_BASE_ADDR	0x306B0000