Add support aarch64 architecture

Support to run scripts in aarch64 Host Linux.

Tested: execute the scripts changed in this commit in Aarch64 Host
Ubuntu OS and check they can execute successfully

Signed-off-by: Thang Q. Nguyen <thang@os.amperecomputing.com>
Change-Id: Idde23fbd09c5000c710f4f6d88793fefbb0cb04c
diff --git a/scripts/build-unit-test-docker b/scripts/build-unit-test-docker
index e79e9d4..8fbdc68 100755
--- a/scripts/build-unit-test-docker
+++ b/scripts/build-unit-test-docker
@@ -675,6 +675,8 @@
     docker_base = "ppc64le/"
 elif arch == "x86_64":
     docker_base = ""
+elif arch == "aarch64":
+    docker_base = ""
 else:
     print(
         f"Unsupported system architecture({arch}) found for docker image",