ctdb-ib: Make infiniband transport compile again

ctdb-ib: Make infiniband transport compile again

Update included header files and fix compilation warnings.

  ib/ibwrapper.c: In function ‘ibw_stop’:
  ib/ibwrapper.c:1015:17: warning: comparison between ‘enum ibw_state_ctx’ and ‘enum ibw_state_conn’ [-Wenum-compare]
     if (ctx->state==IBWC_ERROR || ctx->state==IBWC_CONNECTED) {
                 ^
  ib/ibwrapper.c:1015:43: warning: comparison between ‘enum ibw_state_ctx’ and ‘enum ibw_state_conn’ [-Wenum-compare]
     if (ctx->state==IBWC_ERROR || ctx->state==IBWC_CONNECTED) {

The current logic just seems wrong.  The context of this line and the
error checking in ibw_disconnect() suggest that these comparisons
should use p->state rather than ctx->state, so do that.

Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>