qcacld-3.0: Add policy attribute to SUBCMD_THERMAL_CMD

According to new changes in kernel 5.2 version onwards, driver has to
provide the policy for a NL command to be verified against while
registering wiphy to the kernel.

To satisfy kernel 5.2 requirement add policy to following vendor
command as part of this change:
	QCA_NL80211_VENDOR_SUBCMD_THERMAL_CMD

Change-Id: Ia5a5e62b3fe086c3fab58d92d12898f525f774b8
CRs-Fixed: 2631242

core/hdd/src/wlan_hdd_thermal.c

@@ -36,7 +36,7 @@
 #include <qca_vendor.h>
 #include "wlan_fwol_ucfg_api.h"
 
-static const struct nla_policy
+const struct nla_policy
 	wlan_hdd_thermal_mitigation_policy
 	[QCA_WLAN_VENDOR_ATTR_THERMAL_CMD_MAX + 1] = {
 		[QCA_WLAN_VENDOR_ATTR_THERMAL_CMD_VALUE] = {.type = NLA_U32},

core/hdd/src/wlan_hdd_thermal.h

@@ -25,6 +25,7 @@
 
 #include <linux/netdevice.h>
 #include <net/cfg80211.h>
+#include <qca_vendor.h>
 
 #ifdef FW_THERMAL_THROTTLE_SUPPORT
 
@@ -40,12 +41,18 @@ wlan_hdd_cfg80211_set_thermal_mitigation_policy(struct wiphy *wiphy,
  */
 bool wlan_hdd_thermal_config_support(void);
 
-#define FEATURE_THERMAL_VENDOR_COMMANDS				\
-{								\
-	.info.vendor_id = QCA_NL80211_VENDOR_ID,		\
-	.info.subcmd = QCA_NL80211_VENDOR_SUBCMD_THERMAL_CMD,	\
-	.flags = WIPHY_VENDOR_CMD_NEED_WDEV,			\
-	.doit = wlan_hdd_cfg80211_set_thermal_mitigation_policy	\
+extern const struct nla_policy
+	wlan_hdd_thermal_mitigation_policy
+	[QCA_WLAN_VENDOR_ATTR_THERMAL_CMD_MAX + 1];
+
+#define FEATURE_THERMAL_VENDOR_COMMANDS                             \
+{                                                                   \
+	.info.vendor_id = QCA_NL80211_VENDOR_ID,                    \
+	.info.subcmd = QCA_NL80211_VENDOR_SUBCMD_THERMAL_CMD,       \
+	.flags = WIPHY_VENDOR_CMD_NEED_WDEV,                        \
+	.doit = wlan_hdd_cfg80211_set_thermal_mitigation_policy,    \
+	vendor_command_policy(wlan_hdd_thermal_mitigation_policy,   \
+			      QCA_WLAN_VENDOR_ATTR_THERMAL_CMD_MAX) \
 },
 #else
 #define FEATURE_THERMAL_VENDOR_COMMANDS