Fix common misspellings

Fixes generated by 'codespell' and manually reviewed.

Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
diff --git a/drivers/net/irda/girbil-sir.c b/drivers/net/irda/girbil-sir.c
index a31b8fa..96cdecf 100644
--- a/drivers/net/irda/girbil-sir.c
+++ b/drivers/net/irda/girbil-sir.c
@@ -38,7 +38,7 @@
 /* Control register 1 */
 #define GIRBIL_TXEN    0x01 /* Enable transmitter */
 #define GIRBIL_RXEN    0x02 /* Enable receiver */
-#define GIRBIL_ECAN    0x04 /* Cancel self emmited data */
+#define GIRBIL_ECAN    0x04 /* Cancel self emitted data */
 #define GIRBIL_ECHO    0x08 /* Echo control characters */
 
 /* LED Current Register (0x2) */