video: mxsfb: Break the line in videomode message

Currently we have the following on boot:

CPU:   Freescale i.MX28 rev1.2 at 454 MHz
BOOT:  SSP SD/MMC #0, 3V3
DRAM:  128 MiB
MMC:   MXS MMC: 0
Video: MXSFB: 'videomode' variable not set!In:    serial

Break the line of the warning message in order to have a better reading format.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>

drivers/video/mxsfb.c

@@ -137,7 +137,7 @@ void *video_hw_init(void)
 	/* Suck display configuration from "videomode" variable */
 	penv = getenv("videomode");
 	if (!penv) {
-		printf("MXSFB: 'videomode' variable not set!");
+		puts("MXSFB: 'videomode' variable not set!\n");
 		return NULL;
 	}