imx8: Jump from alias to OCRAM address at SPL init

When running SPL on iMX8, the A core starts at address 0
which is a alias to OCRAM 0x100000.
The alias only map first 96KB of OCRAM, so this require the
SPL size can't beyond 96KB. But when using SPL DM, the size increase
significantly and may exceed 96KB.
So to fix the problem, we will change SPL linker address to OCRAM
address 0x100000. And then jump to the absolute address not the PC relative
address for entering OCRAM.

Signed-off-by: Ye Li <ye.li@nxp.com>
Reviewed-by: Oleksandr Suvorov <oleksandr.suvorov@toradex.com>
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index c5027c1..1df2aba 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -788,6 +788,7 @@
 	select ARM64
 	select DM
 	select OF_CONTROL
+	select ENABLE_ARM_SOC_BOOT0_HOOK
 
 config ARCH_IMX8M
 	bool "NXP i.MX8M platform"