ARM: dts: msm: remove gpio output settings in pin control

The generic pin control configuration for mdss should
not have gpio output settings. This change removes them
so that gpio output can be controlled in the driver.

Change-Id: I1ca5b0584cabe080ee02ba15a7b480a7c495e14f
CRs-Fixed: 717087
Signed-off-by: Chandan Uddaraju <chandanu@codeaurora.org>