ARM:Panda:Fix device tree loading for the panda-es

Fix the device tree loading for panda(4430) and panda-es(4460)

Modify the board name if a 4460 panda or panda-es is detected
at run time.
In the findfdt add a check for the panda-es board name and load
the panda-es device tree blob.

Signed-off-by: Dan Murphy <dmurphy@ti.com>
diff --git a/include/configs/omap4_common.h b/include/configs/omap4_common.h
index 1fd3097..68faeca 100644
--- a/include/configs/omap4_common.h
+++ b/include/configs/omap4_common.h
@@ -176,7 +176,9 @@
 		"if test $board_name = sdp4430; then " \
 			"setenv fdtfile omap4-sdp.dtb; fi; " \
 		"if test $board_name = panda; then " \
-			"setenv fdtfile omap4-panda-es.dtb; fi\0" \
+			"setenv fdtfile omap4-panda.dtb; fi;" \
+		"if test $board_name = panda-es; then " \
+			"setenv fdtfile omap4-panda-es.dtb; fi; \0" \
 	"loadfdt=load mmc ${bootpart} ${fdtaddr} ${bootdir}/${fdtfile}\0" \
 
 #define CONFIG_BOOTCOMMAND \