ARM: dts: msm: enable TLMM spare register control on msm8926

Tlmm register controls some GPIOs output. In order to set GPIO output
successfully, we need to set the tlmm register as well.

Change-Id: I48df361386410a5b60e7f4bb5048016009545a65
Signed-off-by: Ke Liu <keliu@codeaurora.org>