u8800: Add emty BoardConfigVendor.mk
u8800: Initial list of prebuilt binaries.

This list includes RIL stack, the libaudioalsa module and rmt_storage
for modem NV data handling.
u8800: Add external binaries.

These binaries are not pulled from the device, but rather from other
sources, such as other devices.
u8800: External blobs are not generated.
Merge remote-tracking branch 'upstream/cm-10.1' into cm-10.1