Add default GPFS config files,
and include them in the RPM

Signed-off-by: Poornima Gupte <poornima.gupte@in.ibm.com>
Reviewed-by: Venkateswararao Jujjuri (JV) <jvrao@linux.vnet.ibm.com>
Merge branch 'tp/config.txt' into ibm_next_2Xmerge_tmp
Merge branch 'tp/checkpatch' into ibm_next_2Xmerge_tmp
Merge branch 'tp/sync_fixv5' into ibm_next_2Xmerge_tmp
Merge branch 'tp/ibm_next_20_pg_conffiles_1' into ibm_next_2Xmerge_tmp