Revert "add String EXTRA_SECURE_PAIRING"

This reverts commit b9cb8792667a0c873aa08a781ccedc4f5c36221c.
Bluetooth: SAP: Add framework changes to support SAP

This change consists of:
SAP Disconnect from server support related changes

Change-Id: I7215f503244c5ee277e83d60d6960f18559acfb9
Fix MAP SDP record generation [2/3].

Give the bluetooth app API to register a server socket for a specific
UUID/port pair. It needs that for registering two OBEX server instances.

Change-Id: I6ede7f2777040af4e653eceb14ea47a2c03abfae