[adc] Fix shared IRQ and flags issues on STM32

Author: salkinium

src/modm/platform/adc/stm32/adc_impl.hpp.in

@@ -250,7 +250,5 @@ modm::platform::Adc{{ id }}::getInterruptFlags()
 void
 modm::platform::Adc{{ id }}::acknowledgeInterruptFlags(const InterruptFlag_t flags)
 {
-	// Flags are cleared by writing a one to the flag position.
-	// Writing a zero is ignored.
-	ADC{{ per }}->SR = flags.value;
+	ADC{{ per }}->SR = ~flags.value;
 }

src/modm/platform/adc/stm32/module.lb

@@ -76,7 +76,7 @@ def prepare(module, options):
     props["instances"] = []
 
     if target["family"] in ["f2", "f4", "f7"]:
-        props["shared_irqs"] = {"ADC": listify(device.get_driver("adc")["instance"])}
+        props["shared_irqs"] = {"ADC": listify([int(i) for i in device.get_driver("adc")["instance"]])}
         props["shared_irq_ids"] = props["shared_irqs"]["ADC"]
     else:
         shared_irqs = [v["name"] for v in device.get_driver("core")["vector"]]