[MKR_SHARKY] LSI is no longer a source for RF WUP

Replace RCC_RFWKPCLKSOURCE_LSI by RCC_RFWKPCLKSOURCE_LSE

Signed-off-by: Frederic Pillon <[email protected]>

Author: fpistm

variants/MKR_SHARKY/variant.cpp

@@ -126,7 +126,7 @@ WEAK void SystemClock_Config(void)
   PeriphClkInitStruct.UsbClockSelection = RCC_USBCLKSOURCE_PLLSAI1;
   PeriphClkInitStruct.AdcClockSelection = RCC_ADCCLKSOURCE_PLLSAI1;
   PeriphClkInitStruct.RTCClockSelection = RCC_RTCCLKSOURCE_LSE;
-  PeriphClkInitStruct.RFWakeUpClockSelection = RCC_RFWKPCLKSOURCE_LSI;
+  PeriphClkInitStruct.RFWakeUpClockSelection = RCC_RFWKPCLKSOURCE_LSE;
   PeriphClkInitStruct.SmpsClockSelection = RCC_SMPSCLKSOURCE_HSE;
   PeriphClkInitStruct.SmpsDivSelection = RCC_SMPSCLKDIV_RANGE1;