gd: Fix SEC_TAG_BLUETOOTH_CONNECTION event

android_log_event_list is not equivalent
to an ostream formatter as each << parameter
is generated as a separate parameter.

The logging refactor failed to take this
into account and inlined a StringPrintf
call, thus increasing the parameter count.

Bug: 403676434
Flag: EXEMPT, minor bug fix
Test: m com.android.bt
Change-Id: I10c72792232db3aef0e5b151aa967c95e604c877