DEVELOPERS: add Michael Fischer for gnuplot and sdl2

Signed-off-by: Michael Fischer <mf@go-sys.de>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

DEVELOPERS

@@ -1756,6 +1756,10 @@ F:	board/arcturus/
 F:	configs/arcturus_ucp1020_defconfig
 F:	configs/arcturus_ucls1012a_defconfig
 
+N:	Michael Fischer <mf@go-sys.de>
+F:	package/gnuplot/
+F:	package/sdl2/
+
 N:	Michael Rommel <rommel@layer-7.net>
 F:	package/knock/
 F:	package/python-crc16/