BeagleBoard: config: use uImage.beagle for tftp

Signed-off-by: Koen Kooi <koen@dominion.thruhere.net>
Signed-off-by: Joel A Fernandes <agnel.joel@gmail.com>
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>

include/configs/omap3_beagle.h

@@ -200,6 +200,7 @@
 	"loadaddr=0x82000000\0" \
 	"usbtty=cdc_acm\0" \
 	"usbethaddr=de:ad:be:ef\0" \
+	"bootfile=uImage.beagle\0" \
 	"console=ttyS2,115200n8\0" \
 	"mpurate=auto\0" \
 	"buddy=none "\