SPI: spi_qsd: Add snapshot of SPI QSD driver

This change adds a snapshot of SPI QSD driver from the 4.9 branch.
kernel-4.9 baseline:'85a10b57b5c5
("ARM: dts: msm: Enable sdhc1 and sdhc2 for msm8937")'

Change-Id: Ic6a9d304c3b828a06910400c947add85e1b7f762
Signed-off-by: Mukesh Kumar Savaliya <msavaliy@codeaurora.org>