usb: musb: jz4740: Rename platform_device field in priv struct

Name the platform_device pointer 'pdev' instead of 'musb'. Since the
driver also deal with pointers to 'struct musb', it can be very
confusing to have a pointer named after this struct but with a different
type.
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Bin Liu <b-liu@ti.com>
Link: https://lore.kernel.org/r/20200115132547.364-15-b-liu@ti.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/musb/jz4740.c

@@ -17,7 +17,7 @@
 #include "musb_core.h"
 
 struct jz4740_glue {
-	struct platform_device  *musb;
+	struct platform_device	*pdev;
 	struct clk		*clk;
 };
 
@@ -142,7 +142,7 @@ static int jz4740_probe(struct platform_device *pdev)
 
 	musb->dev.parent		= dev;
 
-	glue->musb			= musb;
+	glue->pdev			= musb;
 	glue->clk			= clk;
 
 	platform_set_drvdata(pdev, glue);
@@ -179,7 +179,7 @@ static int jz4740_remove(struct platform_device *pdev)
 {
 	struct jz4740_glue	*glue = platform_get_drvdata(pdev);
 
-	platform_device_unregister(glue->musb);
+	platform_device_unregister(glue->pdev);
 	clk_disable_unprepare(glue->clk);
 
 	return 0;