i2c-msm-v2: Enable/Disable clocks and gpios per transfer

With QUP in shared mode, enabling and disabling the
resources in runtime pm will cause failure of
transactions over the QUP that are running on other
execution environment. To avoid the failure
enable/disable gpios and clocks of QUP per transfer.

Also move the clock prepare and unprepare calls
to runtime pm APIs from the transfer API to
reduce the latencies in the transactions.

Change-Id: Ic697cdc544405d86ec7c675922c18c00fec451a6
Signed-off-by: Dilip Kota <dkota@codeaurora.org>
Signed-off-by: Shrey Vijay <shreyv@codeaurora.org>