DEVELOPERS: add Giulio Benetti to amarula_rk3288_defconfig and asus_rk3288_defconfig

Add Giulio Benetti to amarula_rk3288_defconfig and asus_rk3288_defconfig.

Signed-off-by: Giulio Benetti <giulio.benetti@benettiengineering.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
(cherry picked from commit 2a884aad2059a622c6aae161af0b61df402098fc)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

DEVELOPERS

@@ -1018,6 +1018,8 @@ F:	package/webp/
 F:	package/xapian/
 
 N:	Giulio Benetti <giulio.benetti@benettiengineering.com>
+F:	configs/amarula_vyasa_rk3288_defconfig
+F:	configs/asus_tinker_rk3288_defconfig
 F:	package/at/
 F:	package/binutils/
 F:	package/gcc/