NFC: Set PLL before attempting to prepare clk src

The msm would crash because the clock was not setup right.

Change-Id: I234fff3743e36ce8b33731e0aeafb3c4e7377b43
Acked-by: Umesh Jagga <ujagga@qti.qualcomm.com>
Signed-off-by: Houston Hoffman <hhoffman@codeaurora.org>