Fix aspeed CI job name to match image target sonic-aspeed-arm64.bin

Change job name from 'aspeed' to 'aspeed-arm64' so the build script
target 'sonic-\.bin' resolves to 'sonic-aspeed-arm64.bin',
matching the SONIC_ONE_IMAGE defined in platform/aspeed/one-image.mk.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: Gfrom2016

azure-pipelines.yml

@@ -111,7 +111,7 @@ stages:
         pool: sonicso1ES-arm64
         variables:
           PLATFORM_ARCH: arm64
-      - name: aspeed
+      - name: aspeed-arm64
         pool: sonicso1ES-arm64
         variables:
           PLATFORM_ARCH: arm64