Merge pull request #552 from ChocolateLoverRaj/fmask

Add "FMask" alias for SFMask.

Author: Freax13

src/registers/model_specific.rs

@@ -56,6 +56,7 @@ pub struct Star;
 pub struct LStar;
 
 /// Syscall Register: SFMASK
+#[doc(alias = "FMask")]
 #[derive(Debug)]
 pub struct SFMask;