Add flag for cleaning up SDP CCBs when L2CAP disconnects

Bug: 413457570
Bug: 315241296
Flag: com.android.bluetooth.flags.sdp_ccb_clean_up_after_l2cap_disc
Test: m -j
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:0c79db50f46a205b73c682e00029d9677b53ddaf)
Merged-In: Ide29eb77e58937011a81e336522f9fd34103cfa3
Change-Id: Ide29eb77e58937011a81e336522f9fd34103cfa3