staging: fbtft: fix spacing errors

This patch fixes the following checkpatch.pl errors for
the file fb_bd663474.c:

ERROR: space prohibited before that close parenthesis ')'
ERROR: space prohibited after that open parenthesis '('
ERROR: space required after that ','

Signed-off-by: Aya Mahfouz <mahfouz.saif.elyazal@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>