Revert "community/linux-postmarketos-qcom-sm6350: adjust config (MR 3416)"

Temporarily revert this, so bpo can first build and publish all gcc
cross packages. The build for this linux package currently failed - I
could also set it back to queued and have it build, but that would delay
the publish of the gcc-aarch64 package until the kernel is built.

This reverts commit 979cc0bf.