[mlir][NFC] Rename Bazel target aliases and consolidate targets

This patch completes outstanding TODOs of removing aliases bazel target names.
This patch also renames and cosolidates some bazel targets to be more in line
with their CMake counterparts, e.g. combining `:LinalgOps` and `:LinalgInterfaces`
into `:LinalgDialect`.

Differential Revision: https://reviews.llvm.org/D127459