headers/deps: RDMA: Optimize <rdma/rdma_counter.h> dependencies, remove <linux/pid_namespace.h> inclusion

          --------------------------------------------------------------------
          | Combined, preprocessed C code size of header, without line markers,
          | with comments stripped:
          -------------------------
  before: | #include <rdma/rdma_counter.h>          | LOC:  4,118 | headers:  120
   after: | #include <rdma/rdma_counter.h>          | LOC:  1,037 | headers:   68

Fix up dangling dependencies.

Signed-off-by: Ingo Molnar <mingo@kernel.org>
2 files changed