Merge remote-tracking branch 'k318/dev/pkunapuli/mmc_k3.18' into HEAD

This commit contains rebase of mmc driver changes from downstream
kernel-3.10. New changes are done wherever required as per the latest
mmc drivers in kernel-3.18.

Change-Id: Id6c6b8bdf6a0e63240dd2975ddb9c1f9c27edbb4
Signed-off-by: Pavan Kunapuli <pkunapuli@nvidia.com>

diff --cc arch/arm64/boot/dts/tegra210-grenada.dts
Simple merge

diff --cc arch/arm64/boot/dts/tegra210-hawkeye-p2290-common.dtsi
Simple merge

diff --cc arch/arm64/boot/dts/tegra210-jetson-e-base-p2595-0000-a00.dts
Simple merge

diff --cc arch/arm64/boot/dts/tegra210-platforms/tegra210-p2530-common.dtsi
Simple merge

diff --cc arch/arm64/boot/dts/tegra210-vcm31-e2580-common.dtsi
Simple merge