local.conf.sample: adjust the qemu configuration to refer to qemu-system-native

(From meta-yocto rev: aa16ed1b2c0f358d244a50a41be19d80935d3cc8)

Signed-off-by: Alexander Kanavin <alex.kanavin@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta-poky/conf/local.conf.sample

@@ -241,7 +241,7 @@ BB_DISKMON_DIRS ??= "\
 # seen. The two lines below enable the SDL backend too. By default libsdl2-native will
 # be built, if you want to use your host's libSDL instead of the minimal libsdl built
 # by libsdl2-native then uncomment the ASSUME_PROVIDED line below.
-PACKAGECONFIG_append_pn-qemu-native = " sdl"
+PACKAGECONFIG_append_pn-qemu-system-native = " sdl"
 PACKAGECONFIG_append_pn-nativesdk-qemu = " sdl"
 #ASSUME_PROVIDED += "libsdl2-native"