Add bootloader to CI

stm32-metapac/src/metadata.rs

@@ -15,6 +15,14 @@ pub struct MemoryRegion {
     pub kind: MemoryRegionKind,
     pub address: u32,
     pub size: u32,
+    pub settings: Option<FlashSettings>,
+}
+
+#[derive(Debug, Eq, PartialEq, Clone)]
+pub struct FlashSettings {
+    pub erase_size: u32,
+    pub write_size: u32,
+    pub erase_value: u8,
 }
 
 #[derive(Debug, Eq, PartialEq, Clone)]