ARM: dts: msm: Add SDCC core for mdmcalifornium

MDMCALIFORNIUM supports either eMMC or SD on its platforms. This
change adds the support for SD or eMMC based on what is supported.
The main difference with that will be bus width and voltages
supported.

Change-Id: If52ee5d22db689ecb35f729132e79c737c423f13
Signed-off-by: Krishna Konda <kkonda@codeaurora.org>
Signed-off-by: Venkat Gopalakrishnan <venkatg@codeaurora.org>