Fix common misspellings

Fixes generated by 'codespell' and manually reviewed.

Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
diff --git a/include/video/neomagic.h b/include/video/neomagic.h
index 08b6637..bc5013e 100644
--- a/include/video/neomagic.h
+++ b/include/video/neomagic.h
@@ -129,7 +129,7 @@
 	unsigned char CRTC[25];		/* Crtc Controller */
 	unsigned char Sequencer[5];	/* Video Sequencer */
 	unsigned char Graphics[9];	/* Video Graphics */
-	unsigned char Attribute[21];	/* Video Atribute */
+	unsigned char Attribute[21];	/* Video Attribute */
 
 	unsigned char GeneralLockReg;
 	unsigned char ExtCRTDispAddr;