mailbox: qcom-ipcc: fix incorrect num_chans counting

Breaking out early when a match is found leads to an incorrect num_chans
value when more than one ipcc mailbox channel is used by the same device.

Fixes: e9d50e4b4d ("mailbox: qcom-ipcc: Dynamic alloc for channel arrangement")
Signed-off-by: Jonathan Marek <jonathan@marek.ca>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>

drivers/mailbox/qcom-ipcc.c

@@ -227,10 +227,8 @@ static int qcom_ipcc_setup_mbox(struct qcom_ipcc *ipcc,
 			ret = of_parse_phandle_with_args(client_dn, "mboxes",
 						"#mbox-cells", j, &curr_ph);
 			of_node_put(curr_ph.np);
-			if (!ret && curr_ph.np == controller_dn) {
+			if (!ret && curr_ph.np == controller_dn)
 				ipcc->num_chans++;
-				break;
-			}
 		}
 	}