ARM: 6287/1: ftrace: clean up mcount assembly indentation

The mcount implementation currently uses a different indentation style
from the rest of the file (and the rest of the ARM assembly in the
kernel).  Clean it up.
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: Rabin Vincent <rabin@rab.in>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>