cris: Map the various crisvxx versions to cris

Signed-off-by: Edgar E. Iglesias <edgar@axis.com>
diff --git a/configure.ac b/configure.ac
index 195a71d..c4fd595 100644
--- a/configure.ac
+++ b/configure.ac
@@ -18,6 +18,7 @@
 
 case "${host_cpu}" in
     arm*|sa110)		HOST_CPU="arm" ;;
+    cris*)		HOST_CPU="cris" ;;
     powerpc|powerpc64)	HOST_CPU="ppc" ;;
     sun4u|sparc64)	HOST_CPU="sparc" ;;
     s390x)		HOST_CPU="s390" ;;