Update buildroot to 2020.11.2 (#1200)

Signed-off-by: Stefan Agner <stefan@agner.ch>

buildroot/DEVELOPERS

@@ -405,6 +405,7 @@ F:	package/perl-netaddr-ip/
 F:	package/perl-timedate/
 F:	package/perl-uri/
 F:	package/perl-www-robotrules/
+F:	package/php/
 F:	package/pixman/
 F:	package/pngquant/
 F:	package/pound/
@@ -851,7 +852,6 @@ F:	package/librsync/
 F:	package/libsoup/
 F:	package/libsoxr/
 F:	package/libupnp/
-F:	package/libupnp18/
 F:	package/libv4l/
 F:	package/libxslt/
 F:	package/mbedtls/
@@ -2254,6 +2254,7 @@ F:	package/ogre/
 F:	package/openpowerlink/
 F:	package/physfs/
 F:	package/piglit/
+F:	package/qemu/
 F:	package/solarus/
 F:	package/stress-ng/
 F:	package/supertux/
@@ -2591,7 +2592,7 @@ F:	toolchain/
 N:	Timo Ketola <timo.ketola@exertus.fi>
 F:	package/fbgrab/
 
-N:	Titouan Christophe <titouan.christophe@railnova.eu>
+N:	Titouan Christophe <titouanchristophe@gmail.com>
 F:	package/avro-c/
 F:	package/mosquitto/
 F:	package/python-avro/