board: ti: am43xx: Add TEE loading and firewall setup

Add support for loading a TEE and setting up firewalled regions to
AM43xx HS boards.

Signed-off-by: Andrew F. Davis <afd@ti.com>
diff --git a/configs/am43xx_hs_evm_defconfig b/configs/am43xx_hs_evm_defconfig
index fb4bb03..0cb2ee9 100644
--- a/configs/am43xx_hs_evm_defconfig
+++ b/configs/am43xx_hs_evm_defconfig
@@ -4,6 +4,9 @@
 CONFIG_SYS_MALLOC_F_LEN=0x2000
 CONFIG_AM43XX=y
 CONFIG_TI_SECURE_DEVICE=y
+CONFIG_TI_SECURE_EMIF_REGION_START=0xbdb00000
+CONFIG_TI_SECURE_EMIF_TOTAL_REGION_SIZE=0x02000000
+CONFIG_TI_SECURE_EMIF_PROTECTED_REGION_SIZE=0x01c00000
 CONFIG_ISW_ENTRY_ADDR=0x403018e0
 CONFIG_SPL_STACK_R_ADDR=0x82000000
 CONFIG_DEFAULT_DEVICE_TREE="am437x-gp-evm"