Need a broader match for microblazeel.

Upstream-Status: Pending

Signed-off-by: Mark Hatle <mark.hatle@amd.com>

--- m4-1.4.19/m4/stack-direction.m4.orig	2021-11-30 13:19:56.005640547 -0800
+++ m4-1.4.19/m4/stack-direction.m4	2021-11-30 13:20:03.917640741 -0800
@@ -35,7 +35,7 @@
       m68* | \
       m88k | \
       mcore | \
-      microblaze | \
+      microblaze* | \
       mips* | \
       mmix | \
       mn10200 | \