drivers: pinctrl: xec: Prevent glitch for QMSPI on MAF

Whenever EC bootloader already configured a pin as output and
high, any further reconfiguration via pinctrl driver causes a
glitch in said pin with current sequence.

Defer pin direction configuration to be last operation over
gpio control register to avoid the glitch.

Signed-off-by: Jose Alberto Meza <jose.a.meza.arellano@intel.com>