msm: kgsl: Set bug_on after snapshot to aid scandump

To preserve register states for scandump and to have similar data as
snapshot, break right after snapshot is taken if the corresponding
sysfs knob is set.

Change-Id: I8f6f687359db1c8e6d7592acd85109269551517b
Signed-off-by: Mohammed Mirza Mandayappurath Manzoor <mmandaya@codeaurora.org>