endeavoru/enrc2b: Revive HTC libril.so for in-call audio

The HTC libril.so listens on various sockets that are created by the HTC rild
service. libcall_volume.so uses these sockets to control the in-call audio and
other properties.

Change-Id: I9b2ab4afbc77114b29fcf3ede42e5de445259134
Merge pull request #54 from thoemy/cm-11.0

endeavoru/enrc2b: Revive HTC libril.so for in-call audio
Merge branch 'cm-11.0' of https://github.com/TheMuppets/proprietary_vendor_htc into cd-4.4

Conflicts:
	endeavoru/endeavoru-vendor-blobs.mk
	enrc2b/enrc2b-vendor-blobs.mk

Change-Id: I90e036c94e82cf923d54f2e07a6df5d44c153bde