meta-ibm: acx22: Add allarch to avsbus-control

avsbus-control provides scripts, so set the package arch appropriately.

(From meta-ibm rev: 3168dfa433d1ecda4fb41612942951d06d075157)

Change-Id: Ic136d2cdf03019b69da45062057866bad75c1085
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
diff --git a/meta-ibm/meta-witherspoon/recipes-phosphor/chassis/avsbus-control.bb b/meta-ibm/meta-witherspoon/recipes-phosphor/chassis/avsbus-control.bb
index 3c618a6..d2804df 100644
--- a/meta-ibm/meta-witherspoon/recipes-phosphor/chassis/avsbus-control.bb
+++ b/meta-ibm/meta-witherspoon/recipes-phosphor/chassis/avsbus-control.bb
@@ -3,6 +3,7 @@
 LICENSE = "Apache-2.0"
 LIC_FILES_CHKSUM = "file://${IBMBASE}/COPYING.apache-2.0;md5=34400b68072d710fecd0a2940a0d1658"
 
+inherit allarch
 inherit obmc-phosphor-systemd
 
 RDEPENDS_${PN} += "i2c-tools"