ARM: dts: msm: Enable 1.3v reg in the RFIC in fsm9900

RF specific 1.3v regulator is enabled based on the attached hardware.

Change-Id: I38b99cf2c3ea213c453c5fb27e0e16abf69bf0f8
Acked-by: Edward Rodrigues <erodrigu@qti.qualcomm.com>
Signed-off-by: Rohit Vaswani <rvaswani@codeaurora.org>