Fix common misspellings

Fixes generated by 'codespell' and manually reviewed.

Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h
index 006412c..e538172 100644
--- a/include/linux/usb/gadget.h
+++ b/include/linux/usb/gadget.h
@@ -72,7 +72,7 @@
  * Bulk endpoints can use any size buffers, and can also be used for interrupt
  * transfers. interrupt-only endpoints can be much less functional.
  *
- * NOTE:  this is analagous to 'struct urb' on the host side, except that
+ * NOTE:  this is analogous to 'struct urb' on the host side, except that
  * it's thinner and promotes more pre-allocation.
  */
 
@@ -269,7 +269,7 @@
  *
  * Control endpoints ... after getting a setup() callback, the driver queues
  * one response (even if it would be zero length).  That enables the
- * status ack, after transfering data as specified in the response.  Setup
+ * status ack, after transferring data as specified in the response.  Setup
  * functions may return negative error codes to generate protocol stalls.
  * (Note that some USB device controllers disallow protocol stall responses
  * in some cases.)  When control responses are deferred (the response is