plat-mediatek: support 8GiB DRAM size on MT8195 platform

The DRAM size is increased to 8GiB on MT8395-demo platform,
so CORE_ARM64_PA_BITS should be configured to 36 in OP-TEE.

Change-Id: I13e9d024b6bba1076d98538a9a3dec2ea3b9ba9b
Signed-off-by: Ryan Cho <ryan.cho@mediatek.com>
diff --git a/core/arch/arm/plat-mediatek/conf.mk b/core/arch/arm/plat-mediatek/conf.mk
index 8a0d4fa..531031e 100644
--- a/core/arch/arm/plat-mediatek/conf.mk
+++ b/core/arch/arm/plat-mediatek/conf.mk
@@ -66,6 +66,7 @@
 $(call force,CFG_CORE_CLUSTER_SHIFT,2)
 $(call force,CFG_ARM_GICV3,y)
 $(call force,CFG_GIC,y)
+$(call force,CFG_CORE_ARM64_PA_BITS,36)
 CFG_TZDRAM_START ?= 0x43200000
 CFG_TZDRAM_SIZE ?=  0x00a00000
 CFG_SHMEM_START ?= ($(CFG_TZDRAM_START) + $(CFG_TZDRAM_SIZE))