bus: fsl-mc: dprc-driver: Fix some missing/incorrect function parameter descriptions

Fixes the following W=1 kernel build warning(s):

 drivers/bus/fsl-mc/dprc-driver.c:360: warning: Function parameter or member 'alloc_interrupts' not described in 'dprc_scan_container'
 drivers/bus/fsl-mc/dprc-driver.c:383: warning: Function parameter or member 'irq_num' not described in 'dprc_irq0_handler'
 drivers/bus/fsl-mc/dprc-driver.c:383: warning: Excess function parameter 'irq' description in 'dprc_irq0_handler'
 drivers/bus/fsl-mc/dprc-driver.c:394: warning: Function parameter or member 'irq_num' not described in 'dprc_irq0_handler_thread'
 drivers/bus/fsl-mc/dprc-driver.c:394: warning: Excess function parameter 'irq' description in 'dprc_irq0_handler_thread'

Cc: Stuart Yoder <stuyoder@gmail.com>
Cc: German Rivera <German.Rivera@freescale.com>
Reviewed-by: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20210617110500.15907-5-lee.jones@linaro.orgSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/bus/fsl-mc/dprc-driver.c

@@ -350,7 +350,8 @@ int dprc_scan_objects(struct fsl_mc_device *mc_bus_dev,
  * dprc_scan_container - Scans a physical DPRC and synchronizes Linux bus state
  *
  * @mc_bus_dev: pointer to the fsl-mc device that represents a DPRC object
- *
+ * @alloc_interrupts: if true the function allocates the interrupt pool,
+ *                    otherwise the interrupt allocation is delayed
  * Scans the physical DPRC and synchronizes the state of the Linux
  * bus driver with the actual state of the MC by adding and removing
  * devices as appropriate.
@@ -373,10 +374,11 @@ int dprc_scan_container(struct fsl_mc_device *mc_bus_dev,
 	return error;
 }
 EXPORT_SYMBOL_GPL(dprc_scan_container);
+
 /**
  * dprc_irq0_handler - Regular ISR for DPRC interrupt 0
  *
- * @irq: IRQ number of the interrupt being handled
+ * @irq_num: IRQ number of the interrupt being handled
  * @arg: Pointer to device structure
  */
 static irqreturn_t dprc_irq0_handler(int irq_num, void *arg)
@@ -387,7 +389,7 @@ static irqreturn_t dprc_irq0_handler(int irq_num, void *arg)
 /**
  * dprc_irq0_handler_thread - Handler thread function for DPRC interrupt 0
  *
- * @irq: IRQ number of the interrupt being handled
+ * @irq_num: IRQ number of the interrupt being handled
  * @arg: Pointer to device structure
  */
 static irqreturn_t dprc_irq0_handler_thread(int irq_num, void *arg)