Add gpio-keys kernel feature

Add a gpio-keys feature to be used with KERNEL_FEATURES.

Change-Id: I0f96b842a55b38eb573ad894f79ef4621b97e839
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
diff --git a/meta-phosphor/common/recipes-kernel/linux/linux-obmc.inc b/meta-phosphor/common/recipes-kernel/linux/linux-obmc.inc
index fc4a4f9..c26f4af 100644
--- a/meta-phosphor/common/recipes-kernel/linux/linux-obmc.inc
+++ b/meta-phosphor/common/recipes-kernel/linux/linux-obmc.inc
@@ -8,6 +8,8 @@
 
 KSRC ?= "git://github.com/openbmc/linux;protocol=git;branch=${KBRANCH}"
 SRC_URI = "${KSRC}"
+SRC_URI += "file://phosphor-gpio-keys.scc"
+SRC_URI += "file://phosphor-gpio-keys.cfg"
 SRC_URI += "file://v3-0001-drivers-fsi-Increase-delay-before-sampling-input-.patch"
 
 LINUX_VERSION_EXTENSION ?= "-${SRCREV}"