defconfigs: dra7xx_hs_evm: Add default OPTEE load address

Currently we let U-Boot find a spot at the end of DRAM at runtime, this
forces us to build an OPTEE image based on the size of DRAM for an EVM.
Add a default address that works across all current DRA7xx EVMs.

Signed-off-by: Andrew F. Davis <afd@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>

configs/dra7xx_hs_evm_defconfig

@@ -4,6 +4,9 @@ CONFIG_SYS_MALLOC_F_LEN=0x2000
 CONFIG_TI_SECURE_DEVICE=y
 # CONFIG_SPL_NAND_SUPPORT is not set
 CONFIG_TARGET_DRA7XX_EVM=y
+CONFIG_TI_SECURE_EMIF_REGION_START=0xbe000000
+CONFIG_TI_SECURE_EMIF_TOTAL_REGION_SIZE=0x02000000
+CONFIG_TI_SECURE_EMIF_PROTECTED_REGION_SIZE=0x01c00000
 CONFIG_SPL_SPI_FLASH_SUPPORT=y
 CONFIG_SPL_SPI_SUPPORT=y
 CONFIG_SPL_STACK_R_ADDR=0x82000000