Fix common misspellings

Fixes generated by 'codespell' and manually reviewed.

Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
diff --git a/drivers/ata/pata_amd.c b/drivers/ata/pata_amd.c
index 620a07c..b0975a5 100644
--- a/drivers/ata/pata_amd.c
+++ b/drivers/ata/pata_amd.c
@@ -11,7 +11,7 @@
  *	Power management on ports
  *
  *
- *  Documentation publically available.
+ *  Documentation publicly available.
  */
 
 #include <linux/kernel.h>