cluster/afr: Check for call_count in ENTRY_RENAME_TRANSACTION
cluster/afr: Check for call_count in ENTRY_RENAME_TRANSACTION

Signed-off-by: Vijay Bellur <vijay@gluster.com>
Signed-off-by: Anand V. Avati <avati@dev.gluster.com>

BUG: 824 (Crash in afr rename transaction)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=824

Kaushikbv/Gluster,Kaushikbv/Gluster,Kaushikbv/Gluster