staging: bcm: line over 80 characters in InterfaceIdleMode.c

Fixed all the line over 80 characters warning found by
checkpatch.pl script.

Signed-off-by: Gokulnath Avanashilingam <Gokulnath.Avanashilingam@in.bosch.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>