mmc: sdhci: Fix issues with msm 3.9 kernel

This patch fixes the following issues in sdhci driver
from msm 3.9 kernel -

1. gpio_get_value_cansleep() is used from atomic context
resulting in warning from gpio driver. Move it to non-atomic
context.

2. Move sdhci_enable_preset_value() in set_ios callback after
clocks are enabled otherwise it would result in access to SDHCI
registers if clocks are disabled due to clock gating or suspend.

Change-Id: I231aa6e5c02669cf1aa3f21764642fa7da9a01ff
Signed-off-by: Sahitya Tummala <stummala@codeaurora.org>