google/grunt: Remove BayHub EMMC driving strength override

Side effect was observed that after override BayHub EMMC
driving strength to the max, EMMC CLK will be reduced to
51.x Mhz from 200 Mhz.

This will cause OS installation fail on Samsung EMMC sku.

BUG=b:111964336
BRANCH=master
TEST=emerge-grunt coreboot
Change-Id: I848ab0cae474b15fbc4264c8ade63d5c6b4e489d
Signed-off-by: Kevin Chiu <Kevin.Chiu@quantatw.com>
Reviewed-on: https://review.coreboot.org/28084
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martinroth@google.com>

0 files changed, 0 insertions, 0 deletions