Add .gitignore files

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Kim Phillips <kim.phillips@freescale.com>
diff --git a/examples/.gitignore b/examples/.gitignore
new file mode 100644
index 0000000..f547024
--- /dev/null
+++ b/examples/.gitignore
@@ -0,0 +1,5 @@
+/hello_world
+/interrupt
+/sched
+*.bin
+*.srec