qcacmn: Use global opclass for 6GHz channel lookup

For 6G band, only valid opclass_table is the global_op_class
as per the current specification. Therefore, if the band is 6G
set the opclass to global_op_class instead of the default class.

Change-Id: I43d1be8266aa80b11c446d84bc3d027cde8bebea

umac/regulatory/dispatcher/inc/wlan_reg_services_api.h

@@ -1309,4 +1309,17 @@ wlan_reg_country_chan_opclass_to_freq(struct wlan_objmgr_pdev *pdev,
 uint16_t wlan_reg_chan_opclass_to_freq(uint8_t chan,
 				       uint8_t op_class,
 				       bool global_tbl_lookup);
+
+/**
+ * wlan_reg_chan_opclass_to_freq_auto() - Convert channel number and opclass to
+ * frequency
+ * @chan: IEEE channel number
+ * @op_class: Operating class of channel
+ * @global_tbl_lookup: Flag to determine if global table has to be looked up
+ *
+ * Return: Channel center frequency if valid, else zero
+ */
+
+qdf_freq_t wlan_reg_chan_opclass_to_freq_auto(uint8_t chan, uint8_t op_class,
+					      bool global_tbl_lookup);
 #endif

umac/regulatory/dispatcher/src/wlan_reg_services_api.c

@@ -1102,3 +1102,12 @@ uint16_t wlan_reg_chan_opclass_to_freq(uint8_t chan,
 
 	return reg_chan_opclass_to_freq(chan, op_class, global_tbl_lookup);
 }
+
+qdf_freq_t wlan_reg_chan_opclass_to_freq_auto(uint8_t chan, uint8_t op_class,
+					      bool global_tbl_lookup)
+{
+	if (!chan || !op_class)
+		return 0;
+
+	return reg_chan_opclass_to_freq_auto(chan, op_class, global_tbl_lookup);
+}