DEVELOPERS: add Giulio Benetti as co-maintainer to mali-driver and rockchip-mali packages

Signed-off-by: Giulio Benetti <giulio.benetti@benettiengineering.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>

DEVELOPERS

@@ -1094,9 +1094,11 @@ F:	package/harfbuzz/
 F:	package/libfuse3/
 F:	package/libnspr/
 F:	package/libnss/
+F:	package/mali-driver/
 F:	package/minicom/
 F:	package/nfs-utils/
 F:	package/python-uvloop/
+F:	package/rockchip-mali/
 F:	package/sunxi-mali-utgard/
 F:	package/sunxi-mali-utgard-driver/
 F:	package/trace-cmd/