CI: packages.yml: Fix usage of pre-build tools

Activate CONFIG_AUTOREMOVE to match the settings used to build the
pre-build tools. This has to match the pre-build tools to not rebuild
them.

This prevents the tools being rebuild in packages.yml.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
(cherry picked from commit 6645a019f8)

.github/workflows/packages.yml

@@ -112,6 +112,8 @@ jobs:
           echo CONFIG_ALL=y >> .config
           echo CONFIG_ALL_KMODS=y >> .config
           echo CONFIG_ALL_NONSHARED=y >> .config
+          echo CONFIG_DEVEL=y >> .config
+          echo CONFIG_AUTOREMOVE=y >> .config
 
           ./scripts/ext-toolchain.sh \
             --toolchain ${{ env.TOOLCHAIN_FILE }}/toolchain-* \