m2-gpiomux: Decrease leakage before QSC power-up

Taken from:
msm: mdm2: Decrease leakage before QSC power-up

Cleanup of IPC gpios for driver strength and toggle
AP2MDM_STATUS only after AP2MDM_KPD_PWR is toggled, this
will decrease the leakage from MSM to QSC before QSC
powering up.

CRs-Fixed: 460500
Signed-off-by: Taniya Das <tdas@codeaurora.org>
Signed-off-by: Akhila Musunuri <makhila@codeaurora.org>

Change-Id: I4a84bbbbe2a63d91b4df74213110aebcf6902ae0
m2-gpiomux: set mdm pwr and reset gpios to pull down

Taken from:
msm: 8960: set mdm pwr and reset gpios to pull down

The suspend configurations of the KPD_PWR and RESET gpios used
to power on the external modem need to be changed to PULL_DOWN
from PULL_NONE to avoid spuriously powering on the modem early
in the boot process.

Change-Id: Ic907e7cc33b93571e6d5452e7dc048be7f34c9af
Signed-off-by: Joel King <joelking@codeaurora.org>