initfs: set package arch

initfs is a bunch of shell scripts and therefor allarch.
Set accordingly.

Change-Id: Iaf707830c476c25d3dafabcbb6eec710cfb8bb50
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
diff --git a/common/recipes-phosphor/initrdscripts/obmc-phosphor-initfs.bb b/common/recipes-phosphor/initrdscripts/obmc-phosphor-initfs.bb
index 49e0b05..970af47 100644
--- a/common/recipes-phosphor/initrdscripts/obmc-phosphor-initfs.bb
+++ b/common/recipes-phosphor/initrdscripts/obmc-phosphor-initfs.bb
@@ -5,6 +5,8 @@
 
 PR = "r1"
 
+inherit allarch
+
 S = "${WORKDIR}"
 SRC_URI += "file://obmc-init.sh"
 SRC_URI += "file://obmc-shutdown.sh"