Revert "Revert "Wifi: Support check on device capability for 6GHZ""

This reverts commit ad2b44760de163e4d2104c74ec64e37f37723ff3.

Reason for revert: Fix is ready

Change-Id: I16e30afe843e048429eae430a82aa5e90e591c2e
diff --git a/wifi/1.4/default/wifi_legacy_hal.cpp b/wifi/1.4/default/wifi_legacy_hal.cpp
index 8139253..ae3c447 100644
--- a/wifi/1.4/default/wifi_legacy_hal.cpp
+++ b/wifi/1.4/default/wifi_legacy_hal.cpp
@@ -479,7 +479,7 @@
 std::pair<wifi_error, uint32_t> WifiLegacyHal::getSupportedFeatureSet(
     const std::string& iface_name) {
     feature_set set;
-    static_assert(sizeof(set) == sizeof(uint32_t),
+    static_assert(sizeof(set) == sizeof(uint64_t),
                   "Some feature_flags can not be represented in output");
     wifi_error status = global_func_table_.wifi_get_supported_feature_set(
         getIfaceHandle(iface_name), &set);