Properly check ARCH when setting the intel-iot model.

debian/changelog

@@ -1,3 +1,9 @@
+livecd-rootfs (2.742) UNRELEASED; urgency=medium
+
+  * Properly check ARCH when setting the intel-iot model.
+
+ -- Brian Murray <brian@ubuntu.com>  Wed, 29 Sep 2021 16:33:49 -0700
+
 livecd-rootfs (2.741) impish; urgency=medium
 
   [ John Chittum ]

live-build/auto/config

@@ -917,7 +917,7 @@ case $PROJECT in
 					KERNEL_FLAVOURS=generic
 				fi
 				;;
-			amd64)
+			amd64*)
 				if [ "${SUBARCH:-}" = "generic" ]; then
 					KERNEL_FLAVOURS=generic
 				elif [ "${SUBARCH:-}" = "intel-iot" ]; then