device_iot_config: New functions to store iot info

Add new functions to store remote basic info (e.g. name,
dev class, dev type, etc.) and profile info (a2dp/hfp/avrcp/gap)
to local conf file.

CRs-Fixed: 2333805
Change-Id: Idcc36f109a5509a2326139072f9b5fb3ffe2699b
4 files changed