This patch fixes an initializtion problem in the Memory Channel driver.  A
kernel memory fault during boot is the symptom associated with this issue.

In a memory channel cluster, rebooting a node without performing a hardware
reset can crash other members with a RM_AUDIT_ACK_BLOCK panic.
      0 boot
      1 panic
      2 rm_crash_node_mask
      3 rm_panic
      4 rm_audit_ack_block
      5 rm_write_sync
      6 rm_get_errcnt_lock
      7 rm_lock_global_error
      8 rm_eh_init_shared_data_req
      9 rm_prail_int
     10 rm_int
     11 Mchan_isr
     12 _XentInt


This fixes a problem in the rm driver. Symptoms:
'panic: "simple_lock time limit exceeded" in rm_get_mgmt_spinlock()'


An error in event log indexing may result in the appearance of superfluous
"rm_event, index too big" messages on the system console.

Improves performance of file transfers between members of a memory channel
cluster containing GS1280 systems.

rm_audit_sync_block panic when using a long fiber as the memory channel 
interconnect.


