mx5: Rename mx51_fb_init()

The ipuv3 driver is currently only used on mx51, but it can be extended to work
on mx53 and mx6 as well.

Rename mx51_fb_init(), so that it can be used by other SoCs.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Jason Liu <r64343@freescale.com>
diff --git a/include/ipu_pixfmt.h b/include/ipu_pixfmt.h
index 656f605..0019898 100644
--- a/include/ipu_pixfmt.h
+++ b/include/ipu_pixfmt.h
@@ -76,6 +76,6 @@
 #define IPU_PIX_FMT_YVU422P fourcc('Y', 'V', '1', '6')	/*< 16 YVU 4:2:2 */
 #define IPU_PIX_FMT_YUV422P fourcc('4', '2', '2', 'P')	/*< 16 YUV 4:2:2 */
 
-int mx51_fb_init(struct fb_videomode *mode, uint8_t disp, uint32_t pixfmt);
+int ipuv3_fb_init(struct fb_videomode *mode, uint8_t disp, uint32_t pixfmt);
 
 #endif