Fix common misspellings

Fixes generated by 'codespell' and manually reviewed.

Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>

net/irda/irnet/irnet.h

@@ -73,7 +73,7 @@
  * Infinite thanks to those brave souls for providing the infrastructure
  * upon which IrNET is built.
  *
- * Thanks to all my collegues in HP for helping me. In particular,
+ * Thanks to all my colleagues in HP for helping me. In particular,
  * thanks to Salil Pradhan and Bill Serra for W2k testing...
  * Thanks to Luiz Magalhaes for irnetd and much testing...
  *