wifi(implementation): Set/Reset TX power limit

Hookup the HIDL method calls to the respective newly added legacy
HAL functions for setting/resetting TX power limits for SAR
requirements.

Bug: 62437848
Test: VTS test fails because of a bug in Qcom implementation. Working
with Qcom to fix their implementation.
Change-Id: Ia619f5558e44d44fd77d037e72dfc1f6863b51e0
diff --git a/wifi/1.1/default/wifi_legacy_hal.h b/wifi/1.1/default/wifi_legacy_hal.h
index fef7999..8d9144d 100644
--- a/wifi/1.1/default/wifi_legacy_hal.h
+++ b/wifi/1.1/default/wifi_legacy_hal.h
@@ -205,6 +205,8 @@
       uint32_t period_in_ms);
   wifi_error stopSendingOffloadedPacket(uint32_t cmd_id);
   wifi_error setScanningMacOui(const std::array<uint8_t, 3>& oui);
+  wifi_error setTxPowerLimit(int32_t tx_level_dbm);
+  wifi_error resetTxPowerLimit();
   // Logger/debug functions.
   std::pair<wifi_error, uint32_t> getLoggerSupportedFeatureSet();
   wifi_error startPktFateMonitoring();