meta-quanta: gsj: set machine suffix on linux-nuvoton

Set the machine suffix "gsj" on the linux-nuvoton recipe such that it
will only apply to this machine.

Signed-off-by: Patrick Venture <venture@google.com>
Change-Id: I51d0d08f74b8c21133c0e639c0402a02cd813382
diff --git a/meta-gsj/recipes-kernel/linux/linux-nuvoton_%.bbappend b/meta-gsj/recipes-kernel/linux/linux-nuvoton_%.bbappend
index e4ccc6c..a0f6c73 100644
--- a/meta-gsj/recipes-kernel/linux/linux-nuvoton_%.bbappend
+++ b/meta-gsj/recipes-kernel/linux/linux-nuvoton_%.bbappend
@@ -1,2 +1,2 @@
-FILESEXTRAPATHS_prepend := "${THISDIR}/linux-nuvoton:"
-SRC_URI += "file://gsj.cfg"
+FILESEXTRAPATHS_prepend_gsj := "${THISDIR}/linux-nuvoton:"
+SRC_URI_append_gsj = " file://gsj.cfg"