arm/dt: Update SPM PMIC_DATA to enable/disable PMIC FTS

When doing RPM assisted PC, with L2 in power collapse, the Krait PMIC
FTS gang can also be disabled. Configure PMIC_DATA1 to disable the gang
and PMIC_DATA0 to enable the gang. These data registers are used by SPM
sequence when doing RPM assisted power collapse with L2 power collapse.

Also, the PMIC delay after the PMIC SPM command  is now part of PMIC_DATAn
commands in SAW v2.2. Remove these unused PMIC_DATAn values from the
device tree.

Change-Id: I4d63c8e8be7d0f5b64360b2ba79c26f19c0f5c2c
Signed-off-by: Praveen Chidambaram <pchidamb@codeaurora.org>