msm: 9625: Add support for SDC3

Add device tree bindings, clock and gpiomux
entries for SDC3 SDIO slot with support for
DDR50 mode (100MHz).

Change-Id: I01d4ba4b97030451dd68066df29e0fe0eb441429
Signed-off-by: Oluwafemi Adeyemi <aadeyemi@codeaurora.org>
3 files changed