romio: GPFS code uses the wrong array

[RaymondMichael]

In ad_gpfs_wrcoll.c:ADIOI_GPFS_WriteStridedColl() the call to ADIOI_Calc_others_req() uses count_my_req_per_proc when it should use count_others_req_per_proc instead. See the same code in ad_gpfs_rdcoll().