Add the DDR4_4BG_MODE option, which supports 4GB DDR4 RAM
for the MT7987 and 8GB DDR4 RAM for the MT7988. If this mode
is not enabled, bl2 can only recognize half the size of RAM.
Signed-off-by: Chukun Pan <amadeus@jmu.edu.cn>
Link: https://github.com/openwrt/openwrt/pull/21000
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
(cherry picked from commit f037a2e8bb86d0edd4a4913afd69d39b60a03062)
4f889c2caa