[][MT7986][Change reserved memory for BL31]

[Description]
Change reserved memory for BL31 from 0x20000 to 0x30000,
for FSEK feature needs more memory in BL31

[Release-log]
N/A

Change-Id: I48f156e8122845f7862ddfb225d51e49ee1e01fd
Reviewed-on: https://gerrit.mediatek.inc/c/openwrt/feeds/mtk_openwrt_feeds/+/7508216
2 files changed