m7wls: remove duplicated overlay values

Change-Id: I4ff5e33def8f35b3e061a4c7dfb796238632aed5
m7: split device tree into m7ul, m7att, m7spr, m7tmo
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
Merge remote-tracking branch 'upstream/cm-10.1' into cm-10.1