usb: musb: core: fix kernel-doc of musb_init_controller()

Some parameter names in this function's kernel-doc don't match the real
parameters. While at it, give the 'nIrq' parameter slightly more verbose
description.
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>

drivers/usb/musb/musb_core.c

@@ -1849,9 +1849,9 @@ static void musb_free(struct musb *musb)
 /*
  * Perform generic per-controller initialization.
  *
- * @pDevice: the controller (already clocked, etc)
- * @nIrq: irq
- * @mregs: virtual address of controller registers,
+ * @dev: the controller (already clocked, etc)
+ * @nIrq: IRQ number
+ * @ctrl: virtual address of controller registers,
  *	not yet corrected for platform-specific offsets
  */
 static int __devinit