octeontx2-af: Initialize 'cntr_val' to fix uninitialized symbol error

drivers/net/ethernet/marvell/octeontx2/nic/otx2_tc.c:860
otx2_tc_update_mcam_table_del_req()
error: uninitialized symbol 'cntr_val'.

Fixes: ec87f05 ("octeontx2-af: Install TC filter rules in hardware based on priority")
Signed-off-by: Suman Ghosh <sumang@marvell.com>
Link: https://lore.kernel.org/r/20230727163101.2793453-1-sumang@marvell.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

drivers/net/ethernet/marvell/octeontx2/nic/otx2_tc.c

@@ -841,7 +841,7 @@ static int otx2_tc_update_mcam_table_del_req(struct otx2_nic *nic,
 	struct list_head *pos, *n;
 	struct otx2_tc_flow *tmp;
 	int i = 0, index = 0;
-	u16 cntr_val;
+	u16 cntr_val = 0;
 
 	/* Find and delete the entry from the list and re-install
 	 * all the entries from beginning to the index of the
@@ -880,7 +880,7 @@ static int otx2_tc_update_mcam_table_add_req(struct otx2_nic *nic,
 	int mcam_idx = flow_cfg->max_flows - flow_cfg->nr_flows - 1;
 	struct otx2_tc_flow *tmp;
 	int list_idx, i;
-	u16 cntr_val;
+	u16 cntr_val = 0;
 
 	/* Find the index of the entry(list_idx) whose priority
 	 * is greater than the new entry and re-install all