[][eMMC:Add MT7628A AX7800 eMMC device]

[Description]
Add MT7628A AX7800 eMMC device

[Release-log]
N/A

Change-Id: Ia714e30eaf3302afba647e1269894aba15de6a5a
Reviewed-on: https://gerrit.mediatek.inc/c/openwrt/feeds/mtk_openwrt_feeds/+/6219556
1 file changed