Staging: sm750fb: sm750_hw.c: Insert spaces after commas.

Insert Spaces after commas to rectify the
following checkpatch errors in sm750_hw.c:
ERROR: space required after that ','

Signed-off-by: Isaac Assegai <isaac.a.travers@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>