generate u-boot.ldr for Blackfin targets

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
diff --git a/.gitignore b/.gitignore
index cda275e..e29dce9 100644
--- a/.gitignore
+++ b/.gitignore
@@ -17,9 +17,13 @@
 
 /System.map
 /u-boot
+/u-boot.hex
 /u-boot.map
 /u-boot.bin
 /u-boot.srec
+/u-boot.ldr
+/u-boot.ldr.hex
+/u-boot.ldr.srec
 
 #
 # Generated files