staging: bcm2835-camera: Fix comment typos.

Fix a typo flagged by checkpatch, and another in the same line.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/vc04_services/bcm2835-camera/mmal-msg-port.h

@@ -37,7 +37,7 @@ enum mmal_port_type {
  *
  * most elements are informational only, the pointer values for
  * interogation messages are generally provided as additional
- * strucures within the message. When used to set values only teh
+ * structures within the message. When used to set values only the
  * buffer_num, buffer_size and userdata parameters are writable.
  */
 struct mmal_port {