cosmetic changes to bcm570x driver

This is a cosmetic only changes submission.
It affects files relevant to bcm570x driver.
the commands used to generate this change was

cd drivers
Lindent -pcs -l80  bcm570x.c   bcm570x_lm.h   bcm570x_mm.h  tigon3.c  tigon3.h

The BMW target (the only one using this chip so far) builds cleanly, the
`before and after' generated object files for drivers/bcm570x.c and
drivers/tigon3.o are identical as reported by objdump -d

Signed-off-by: Vadim Bendebury <vbendeb@google.com>
Signed-off-by: Ben Warren <bwarren@qstreams.com>