resources: Add general gitignore and npb gitignore

Signed-off-by: Jason Lowe-Power <jason@lowepower.com>
Change-Id: Ie7f890e89b92581943e87df0da1e7cee7f2d1bc2
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5-resources/+/43305
Reviewed-by: Bobby R. Bruce <bbruce@ucdavis.edu>
Maintainer: Bobby R. Bruce <bbruce@ucdavis.edu>
Tested-by: Bobby R. Bruce <bbruce@ucdavis.edu>
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..66f149f
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,4 @@
+__pycache__/
+*.pyc
+m5out/
+packer
diff --git a/src/npb/.gitignore b/src/npb/.gitignore
new file mode 100644
index 0000000..5856da1
--- /dev/null
+++ b/src/npb/.gitignore
@@ -0,0 +1 @@
+disk-image/npb/npb-image/npb