MAINTAINERS: update entry for mt76 wireless driver

Roy and I actively join the development and review.
Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

MAINTAINERS

@@ -9781,6 +9781,8 @@ F:	Documentation/devicetree/bindings/media/mediatek-vpu.txt
 MEDIATEK MT76 WIRELESS LAN DRIVER
 M:	Felix Fietkau <nbd@nbd.name>
 M:	Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
+R:	Ryder Lee <ryder.lee@mediatek.com>
+R:	Roy Luo <royluo@google.com>
 L:	linux-wireless@vger.kernel.org
 S:	Maintained
 F:	drivers/net/wireless/mediatek/mt76/