aci_pei.c: sync with Magnetite for (MMI != 0) There was a change in Magnetite aci3 for (MMI != 0) configuration; this config does not exist in Selenite, but this change is being pulled in as a sync in order to keep the diff between Magnetite and Selenite to a minimum.

# hw properties
LINK_SCRIPT_SRC=src/cs/system/template/gsm_ds_amd8_compact.template
FLASH_BASE_ADDR=0
FLASH_SECTOR_SIZE=0x10000

# default config
GPRS=1
SRVC=1
FCHG_STATE=0
RVTMUX_ON_MODEM=0