DEVELOPERS: add myself to toolchain topics/packages

Since I've dealt and deal with toolchain bugs and their work-around
very often add myself to toolchain topic(toolchain/) as well as
package/binutils and package/gcc.

Signed-off-by: Giulio Benetti <giulio.benetti@benettiengineering.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

DEVELOPERS

@@ -1052,6 +1052,8 @@ F:	package/xapian/
 
 N:	Giulio Benetti <giulio.benetti@benettiengineering.com>
 F:	package/at/
+F:	package/binutils/
+F:	package/gcc/
 F:	package/libfuse3/
 F:	package/libnspr/
 F:	package/libnss/
@@ -1060,6 +1062,7 @@ F:	package/nfs-utils/
 F:	package/sunxi-mali-mainline/
 F:	package/sunxi-mali-mainline-driver/
 F:	package/udisks/
+F:	toolchain/
 
 N:	Gregory Dymarek <gregd72002@gmail.com>
 F:	package/ding-libs/