The U-Boot build for the MT7988 reference board booting from SD card
wrongly depended on the 'ddr4' variant of the ARM TrustedFirmware-A build
even though the 'comb' variant is used. Fix that dependency.
Fixes: 572ea68070 ("uboot-mediatek: add patches for MT7988 and builds for RFB")
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
(cherry picked from commit 78e3adcaf993cd1a58821a69efccfca8d380f754)
d052d409a0