[RIL] Moved modem directory to /data/radio

Change-Id: If9bfddf20623e91ae342975fdd953d59b250d58f
[BT] Added BT interface. Stored BT MAC adress in ril directory

Change-Id: I74ce5a02431119ac1799e9f57f259ba2e63be845
[SND] Added control routines for NS_EC, 1MIC_NS and PCM_IF.