drivers: pinctrl-msm: Move setting mpm_wake_ctl during .irq_enable

Setting mpm_wake_ctl after enabling irq at parent PDC/GIC may cause
a false irq sometimes. Move setting mpm_wake_ctl during .irq_enable
before enabling irq at parent PDC/GIC. Since first irq is cleared
and then enabled it may clear any false irq received and pending at
GIC before enabling same.

While at this also add missing flags IRQCHIP_MASK_ON_SUSPEND and
IRQCHIP_SET_TYPE_MASKED for msmgpio irqchip.

Change-Id: I4801dd984ae5607f87045abc233dfd2d76fcadd1
Signed-off-by: Maulik Shah <mkshah@codeaurora.org>