Updating to U-Boot 2023.04 broke the build for the RAVPower RP-WD009
MT7628 board. This was due to upstream conversion of CONFIG_* to CFG_*
which was not applied to our downstream patch adding support for the
RAVPower RP-WD009 device.
Apply CONFIG_* to CFG_* converion analog to what has been done also
for mt7928_rfb upstream.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
00a240e77f