Update ACL pin to ec2256b81e6d6f655dcfbc76683738fbfeb82bcc

Signed-off-by: Nikhil Raj <nikhil.raj@arm.com>
Change-Id: Idc5233a19a97a6feb42b6841e6aff9d793a88740
diff --git a/scripts/get_compute_library.sh b/scripts/get_compute_library.sh
index bcffcf4..3ab1e4d 100755
--- a/scripts/get_compute_library.sh
+++ b/scripts/get_compute_library.sh
@@ -10,7 +10,7 @@
 #DEFAULT_CLFRAMEWORKREVISION="branches/arm_compute_20_11" # Release 20.11
 #
 # For pinning to a revision use this:
-DEFAULT_CLFRAMEWORKREVISION="98e33b97b92c912f058bfb3295adad1bcad3e80f" #Fix invalid arguments error for cl_gemmlowp* examples without arguments.
+DEFAULT_CLFRAMEWORKREVISION="ec2256b81e6d6f655dcfbc76683738fbfeb82bcc" #Move NEGEMMAssemblyDispatch as an internal function.
 
 usage() {
     echo "Usage: $CMD (Use the default clframework SHA)"