[SPARC64]: Add .gitignore file for sparc64 boot images.

Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/arch/sparc64/boot/.gitignore b/arch/sparc64/boot/.gitignore
new file mode 100644
index 0000000..36356f9
--- /dev/null
+++ b/arch/sparc64/boot/.gitignore
@@ -0,0 +1,4 @@
+image
+tftpboot.img
+vmlinux.aout
+piggyback