iprj: Make init script and fstab model specific items.

Preparation for adding VS920 (i_vzw):

init.iprj.rc is renamed to init.iprj-common.rc, which will be imported
by model specific versions of init.iprj.rc.  This allows the VS920 init
items to be in a model specific init.iprj.rc.

fstab.iprj is model specific, VS920 has a different partition layout.

Change-Id: I3f5f20a60ac08404e80b063ce608f5268d95e4ac
iprj: Remove hardcoded block references.

* init.iprj-common.rc: Only wait for mmcblk0 in "on fs".  The block devices
  are available before init starts, this is mostly just paranoia.

* scripts: Use mount path instead of device name in remounts.

Note init.qcom.mdm_links.sh still references mmcblk0p14 but that is the
same across all models.

Change-Id: Idc54df8bc478fabcbee2243e18e7127b06480f5f
iprj: ro.product.camera, ro.telephony.ril.v3 are model specific.

Change-Id: I193f15bc85432a9b275bfabc71476e9ca6e82f98
iprj: vs920 support

* Add vs920/i_vzw to all model references.

* Support fetching vs920 bluetooth mac.

* Run init.qcom.mdm_links.sh earlier, as required by vs920 ril.

* Move baseband scraper into a separate script and support all baseband
  versions on all models.

Change-Id: I84baf3d92e7a4225f15565220a2efc344e7c2a5c
Set the default restart level to 2

Try recovering the subsystem instead of going straight to panic

Change-Id: Ibcb8daf08ba669874afb1464024754c377f4681b