s4-common: gps: import HAL from jb_chocolate_rb2.1

Change-Id: I80afb0f9050697f7355b65f654759c3a894da276
s4-common: gps: dlopen loc_api_v02.so

Change-Id: Ic4c8c70ac69dadc605630e744e595a9dd84e8219
s4-common: gps: modify HAL to match HTC libloc_api_v02.so

Change-Id: I455c8ae61c10f9b9da7277b39dd4ccaed244027d