SensitiveContentProtection metric updates

- move start/stop logs within mSensitiveContentProtectionLock
- move all logging into MediaProjectionSession

Bug: 331946904
Test: atest SensitiveContentProtectionManagerServiceContentTest SensitiveContentProtectionManagerServiceNotificationTest
Change-Id: I5705cf8340ddcc7b3b0451ef58fcb4e49ee909bb
1 file changed