Revert "i3c: master: svc: Modify enabled_events bit 7:0 to act as IBI enable counter"

This reverts commit 6d636e09 which is
commit 25bc99be upstream.

It breaks the Android kernel abi and can be brought back in the future
in an abi-safe way if it is really needed.

Bug: 161946584
Change-Id: Iac7ace1a9671eb1c57dac23f885ab615368348cc
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>