[WifiCoex] Add WifiChip HIDL APIs for coex

Add HIDL APIs to convey a list of unsafe Wifi channels to the driver for
coex channel avoidance.

Bug: 153651001
Test: build
Change-Id: I8b14f0e2d8855c1f1e363d612617256d8e928f30
diff --git a/wifi/1.5/default/hidl_struct_util.h b/wifi/1.5/default/hidl_struct_util.h
index 49d8a12..feb47ef 100644
--- a/wifi/1.5/default/hidl_struct_util.h
+++ b/wifi/1.5/default/hidl_struct_util.h
@@ -71,6 +71,12 @@
     IfaceType hidl_interface_type);
 legacy_hal::wifi_multi_sta_use_case convertHidlMultiStaUseCaseToLegacy(
     IWifiChip::MultiStaUseCase use_case);
+bool convertHidlCoexUnsafeChannelToLegacy(
+    const IWifiChip::CoexUnsafeChannel& hidl_unsafe_channel,
+    legacy_hal::wifi_coex_unsafe_channel* legacy_unsafe_channel);
+bool convertHidlVectorOfCoexUnsafeChannelToLegacy(
+    const std::vector<IWifiChip::CoexUnsafeChannel>& hidl_unsafe_channels,
+    std::vector<legacy_hal::wifi_coex_unsafe_channel>* legacy_unsafe_channels);
 
 // STA iface conversion methods.
 bool convertLegacyFeaturesToHidlStaCapabilities(