[OE-core] [PATCH] binconfig-disabled: add a default value and comment for BINCONFIG

[Ross Burton]

To avoid syntax errors when inheriting this class without setting BINCONFIG, add
a default value and a comment.

Signed-off-by: Ross Burton <ross.burton at intel.com>
---
 meta/classes/binconfig-disabled.bbclass |    3 +++
 1 file changed, 3 insertions(+)

diff --git a/meta/classes/binconfig-disabled.bbclass b/meta/classes/binconfig-disabled.bbclass
index 1308358..27f904e 100644
--- a/meta/classes/binconfig-disabled.bbclass
+++ b/meta/classes/binconfig-disabled.bbclass
@@ -2,6 +2,9 @@
 # Class to disable binconfig files instead of installing them
 #
 
+# The list of scripts which should be disabled.
+BINCONFIG ?= ""
+
 FILES_${PN}-dev += "${bindir}/*-config"
 
 do_install_append () {
-- 
1.7.10.4