[ARM] 4876/1: i.MXC family: Clean up

From: Juergen Beisert <j.beisert@pengutronix.de>

Clean up current header files from doxygen style comments. There are
probably more such comments left, but we start with these.

Things happend since last review:
 - needless blank lines removed (note by Russell King)
 - re-format comments (note by Ross Wille)

Signed-off-by: Juergen Beisert <j.beisert@pengutronix.de>
Signed-off-by: Ross Wille <wille@freescale.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>