[OE-core] [PATCH] local.conf.sample: Append sdl to qemu-native* PACKAGECONFIG

[Richard Purdie]

Now there are other PACKAGECONFIG options to qemu, we need
to append to the list.

Signed-off-by: Richard Purdie <richard.purdie at linuxfoundation.org>

diff --git a/meta/conf/local.conf.sample b/meta/conf/local.conf.sample
index 555f8db..6b5250a 100644
--- a/meta/conf/local.conf.sample
+++ b/meta/conf/local.conf.sample
@@ -198,8 +198,8 @@ BB_DISKMON_DIRS = "\
 # By default qemu will build with a builtin VNC server where graphical output can be
 # seen. The two lines below enable the SDL backend too. This assumes there is a
 # libsdl library available on your build system.
-PACKAGECONFIG_pn-qemu-native = "sdl"
-PACKAGECONFIG_pn-nativesdk-qemu = "sdl"
+PACKAGECONFIG_append_pn-qemu-native = " sdl"
+PACKAGECONFIG_append_pn-nativesdk-qemu = " sdl"
 ASSUME_PROVIDED += "libsdl-native"