drivers/storage/sdhci: Set preset_enable on mmc host

If presets are enabled on the SDHCI host, tell the mmc layer so it
relinquishes control of setting the clock.

BUG=b:159823235, b:158766134
BRANCH=zork
TEST=Modify ezkinil device tree to use a 400 kHz clock. Boot and verify
initial clock was 400 kHz. Also verified HS200 and HS400 still function.

Signed-off-by: Raul E Rangel <rrangel@chromium.org>
Change-Id: Ib34fe0139f2a13a1c9ffbfcef60c09ba9647efe7
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/depthcharge/+/2432996
Reviewed-by: Eric Peers <epeers@google.com>
Reviewed-by: Rob Barnes <robbarnes@google.com>
1 file changed