m7wls: remove duplicated overlay values

Change-Id: I4ff5e33def8f35b3e061a4c7dfb796238632aed5
m7: split device tree into m7ul, m7att, m7spr, m7tmo

Conflicts:
	slim.mk
	vendorsetup.sh
m7spr: improve proprietary file handling
m7spr: convert from DOS line endings
m7spr: move network_mode overlay to m7-common/overlay-cdma
m7spr: add device guard
m7spr: override OTA assert
m7spr: allow m7wls devices

Change-Id: I01bdd1b69863c2210cc93e82b7057d45c9fad635
m7spr: handle all init scripts in m7-common

Change-Id: Iedd4787830e3176995f9f2022a1b3e15f9f61285
m7spr: handle recovery fstab in m7-common

Change-Id: Ie2d82f506f5aebc4d3e6dee939b3ec94caf45a7e
m7spr: use HTCQualcommRIL class

Change-Id: Ic3c4bd055bde8e904ba52b3154940e7334010315
m7spr: use libril from sources

Change-Id: I0e3f23102a16c30b477dc08684e70d9ad5dc7409