mione_plus: fix softap for old mione

Change-Id: I692db419c4e92d3e25d3d2f2e60a421d56d0b269
mione_plus: add libnv.so and liboncrpc.so to shared obj dir

Change-Id: I87415ec816b39db3684ea8d8b4857e4f51f49a17
mione_plus: add libreadmac

libreadmac is original by huangqiwu from Xiaomi Inc.
https://github.com/mirom/android_device_xiaomi_mione_plus/commit/cf62e83ee96d90f0735c56b85fb8e252574c644d

Change-Id: I69e366cde31755453f56c4035d01aab3b357cf87
mioe_plus: fix wifi mac address

credit: huangqiwu, PeterCxy
https://github.com/mirom/android_device_xiaomi_mione_plus/commit/cf62e83ee96d90f0735c56b85fb8e252574c644d
https://github.com/mirom/android_hardware_libhardware_legacy/commit/56c719cf38ffdf94c51fd3e017249708d2a1aa7d

Change-Id: Icb664a739c520fa3c6429e9a5dacd79f2b3119da