staging: fsl-mc: Drop unneeded void pointer cast

Void pointers need not be cast to other pointer types.
Semantic patch used:

@r@
expression x;
void *e;
type T;
identifier f;
@@

(
  *((T *)e)
|
  ((T *)x) [...]
|
  ((T *)x)->f
|
- (T *)
  e
)
Signed-off-by: NJanani Ravichandran <janani.rvchndrn@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

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

@@ -407,7 +407,7 @@ static irqreturn_t dprc_irq0_handler_thread(int irq_num, void *arg)
 {
 	int error;
 	u32 status;
-	struct device *dev = (struct device *)arg;
+	struct device *dev = arg;
 	struct fsl_mc_device *mc_dev = to_fsl_mc_device(dev);
 	struct fsl_mc_bus *mc_bus = to_fsl_mc_bus(mc_dev);
 	struct fsl_mc_io *mc_io = mc_dev->mc_io;