pinctrl: msm: Fix pin parsing and remove CONFIG_PINCTRL_MSM

1) pinctrl-msm.c cantaining the device tree parsing logic
and the pinmux framework interface cannot be compiled independently.
It has a dependency on the underlying TLMM implementation.
Remove CONFIG_MSM_PINCTRL and use CONFIG_PINCTRL_MSM_TLMM_V3
to compile the TLMM implementation as well as the device tree
parsing logic.
2) Fix the bug that causes incorrect pintype labels to be applied
while parsing pins from device tree entries.

Change-Id: I16b1955da185c37d323912c555343bc4eb632655
Signed-off-by: Hanumant Singh <hanumant@codeaurora.org>