usb: fsl: Rename fdt_fixup_dr_usb

The function fdt_fixup_dr_usb is specific to fsl/nxp. So,
make the function name explicit and rename fdt_fixup_dr_usb
into fsl_fdt_fixup_dr_usb.

Signed-off-by: Sriram Dash <sriram.dash@nxp.com>
diff --git a/drivers/usb/common/fsl-dt-fixup.c b/drivers/usb/common/fsl-dt-fixup.c
index 9c48852..906f9df 100644
--- a/drivers/usb/common/fsl-dt-fixup.c
+++ b/drivers/usb/common/fsl-dt-fixup.c
@@ -131,7 +131,7 @@
 	return 0;
 }
 
-void fdt_fixup_dr_usb(void *blob, bd_t *bd)
+void fsl_fdt_fixup_dr_usb(void *blob, bd_t *bd)
 {
 	static const char * const modes[] = { "host", "peripheral", "otg" };
 	static const char * const phys[] = { "ulpi", "utmi", "utmi_dual" };