fix(plat/rcar3): fix to bit operation for WUPMSKCA57/53

Change internal function to call when updating value for WUPMSKCA57/53.

Signed-off-by: Koichi Yamaguchi <koichi.yamaguchi.zb@hitachi.com>
Signed-off-by: Toshiyuki Ogasahara <toshiyuki.ogasahara.bo@hitachi.com>
Signed-off-by: Yoshifumi Hosoya <yoshifumi.hosoya.wj@renesas.com>
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Change-Id: Id20e65e27861dd73a149ff487123859581a9b5c5