MAINTAINERS: wifi: mwifiex: add Francesco as reviewer

As discussed on the mailing list, add myself as mwifiex driver reviewer.

Link: https://lore.kernel.org/all/20240318112830.GA9565@francesco-nb/Signed-off-by: Francesco Dolcini <francesco@dolcini.it>
Acked-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://msgid.link/20240321163420.11158-1-francesco@dolcini.it

MAINTAINERS

@@ -13077,6 +13077,7 @@ F:	drivers/net/ethernet/marvell/mvpp2/
 
 MARVELL MWIFIEX WIRELESS DRIVER
 M:	Brian Norris <briannorris@chromium.org>
+R:	Francesco Dolcini <francesco@dolcini.it>
 L:	linux-wireless@vger.kernel.org
 S:	Odd Fixes
 F:	drivers/net/wireless/marvell/mwifiex/