mb/google/fizz: Turn off SATA SALP

turn off SATA SALP to prevent 0x5A/0x5B error on Sandisk SSD
in below conditions:

1. reboot stress
2. FAFT BIOS qualification

BUG=b:70146894,b:69984821,b:70590720
BRANCH=master
TEST=pass firmware_ConsecutiveBoot 2500 loops
     FAFT BIOS test pass
Change-Id: I5d57dd8ef256d5f0a1027ab77f63da62c6c9ce74
Signed-off-by: Kevin Chiu <Kevin.Chiu@quantatw.com>
Reviewed-on: https://review.coreboot.org/23153
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Shelley Chen <shchen@google.com>
1 file changed