lifetime ellision for FieldWriter to fix clippy warning

Author: robamu

src/generate/generic.rs

@@ -337,7 +337,7 @@ pub struct RangeTo<const MAX: u64>;
 /// Write field Proxy
 pub type FieldWriter<'a, REG, const WI: u8, FI = u8, Safety = Unsafe> = raw::FieldWriter<'a, REG, WI, FI, Safety>;
 
-impl<'a, REG, const WI: u8, FI, Safety> FieldWriter<'a, REG, WI, FI, Safety>
+impl<REG, const WI: u8, FI, Safety> FieldWriter<'_, REG, WI, FI, Safety>
 where
     REG: Writable + RegisterSpec,
     FI: FieldSpec,