fp5280g2: replace --enable-use_json by --enable-use-json

For consistency, use hyphen and not a mix of underscore and hyphen.

(From meta-inspur rev: 21b37ce156ec4301f08aae1a70e049c37dadc7bf)

Signed-off-by: George Liu <liuxiwei@inspur.com>
Change-Id: I93965d7534f10a88d61e656833414c70b7f5822c
Signed-off-by: Andrew Geissler <geissonator@yahoo.com>
diff --git a/meta-inspur/meta-fp5280g2/recipes-phosphor/leds/phosphor-led-manager_%.bbappend b/meta-inspur/meta-fp5280g2/recipes-phosphor/leds/phosphor-led-manager_%.bbappend
index a122a72..2ad194f 100644
--- a/meta-inspur/meta-fp5280g2/recipes-phosphor/leds/phosphor-led-manager_%.bbappend
+++ b/meta-inspur/meta-fp5280g2/recipes-phosphor/leds/phosphor-led-manager_%.bbappend
@@ -2,7 +2,7 @@
 
 SRC_URI += "file://led-group-config.json"
 
-EXTRA_OECONF = "--enable-use_json"
+EXTRA_OECONF += "--enable-use-json"
 
 DEPENDS += "phosphor-dbus-interfaces"