mb/google/rex: Add DRIVERS_GENESYSLOGIC_GL9755
Rex uses GL9755 and miss select the driver.
BUG=b:
273906526
TEST=SD card is functional.
Signed-off-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Change-Id: I674b052689c80873e8a3b295d15788f3a93f0b82
Reviewed-on: https://review.coreboot.org/c/coreboot/+/73760
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Ivy Jian <ivy.jian@quanta.corp-partner.google.com>
Reviewed-by: Kapil Porwal <kapilporwal@google.com>
Reviewed-by: Subrata Banik <subratabanik@google.com>