jtag: fix minor typos

Change-Id: I3a3370db438f8fd045fb22e7c9fff4e83794a3b7
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/5767
Tested-by: jenkins

src/jtag/jtag.h

@@ -210,11 +210,11 @@ struct jtag_tap_event_action {
 };
 
 /**
- * Defines the function signature requide for JTAG event callback
+ * Defines the function signature required for JTAG event callback
  * functions, which are added with jtag_register_event_callback()
  * and removed jtag_unregister_event_callback().
  * @param event The event to handle.
- * @param prive A pointer to data that was passed to
+ * @param priv A pointer to data that was passed to
  *	jtag_register_event_callback().
  * @returns Must return ERROR_OK on success, or an error code on failure.
  *
@@ -249,7 +249,7 @@ int jtag_config_khz(unsigned khz);
  */
 int jtag_config_rclk(unsigned fallback_speed_khz);
 
-/** Retreives the clock speed of the JTAG interface in KHz. */
+/** Retrieves the clock speed of the JTAG interface in KHz. */
 unsigned jtag_get_speed_khz(void);
 
 enum reset_types {
@@ -407,7 +407,7 @@ void jtag_add_callback(jtag_callback1_t f, jtag_callback_data_t data0);
  * assumptions about what the callback does or what its arguments are.
  * These callbacks are typically executed *after* the *entire* JTAG
  * queue has been executed for e.g. USB interfaces, and they are
- * guaranteeed to be invoked in the order that they were queued.
+ * guaranteed to be invoked in the order that they were queued.
  *
  * If the execution of the queue fails before the callbacks, then --
  * depending on driver implementation -- the callbacks may or may not be
@@ -457,7 +457,7 @@ void jtag_add_tlr(void);
  * path when transitioning to/from end
  * state.
  *
- * A list of unambigious single clock state transitions, not
+ * A list of unambiguous single clock state transitions, not
  * all drivers can support this, but it is required for e.g.
  * XScale and Xilinx support
  *