staging: rtl8723au: rtl8723a_hal_init.c: remove unnecessary braces

Fix all checkpatch "braces {} are not necessary" warnings for
rtl8723au/hal/rtl8723a_hal_init.c

Signed-off-by: Daniele Alessandrelli <daniele.alessandrelli@gmail.com>
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Acked-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>