musb: Rename dma.h to musb_dma.h

Rename dma.h to musb_dma.h
Signed-off-by: Tony Lindgren <tony@atomide.com>

drivers/usb/musb/cppi_dma.h

@@ -9,7 +9,7 @@
 #include <linux/errno.h>
 #include <linux/dmapool.h>
 
-#include "dma.h"
+#include "musb_dma.h"
 #include "musb_core.h"
 #include "davinci.h"
 

drivers/usb/musb/musb_core.h

@@ -54,7 +54,7 @@ struct musb_ep;
 
 
 #include "debug.h"
-#include "dma.h"
+#include "musb_dma.h"
 
 #ifdef CONFIG_USB_MUSB_SOC
 /*