uboot-mediatek: fix dependency on TF-A for MT7988 RFB (sdmmc)
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 <[email protected]>
Daniel Golle