Add basic .gitignore

Ignore directories created by abuild, jenkins, payloads and crossgcc.

Change-Id: I7d4145fc1e54a10ffdc4b884d8b8f0ae53e615c6
Signed-off-by: Cristian Măgherușan-Stanciu <cristi.magherusan@gmail.com>
Signed-off-by: Peter Stuge <peter@stuge.se>
Reviewed-on: http://review.coreboot.org/10
Tested-by: build bot (Jenkins)
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..78f083c
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,9 @@
+.config
+.config.old
+.xcompile
+build/
+coreboot-builds/
+payloads/external/FILO/filo/
+payloads/external/SeaBIOS/seabios/
+util/crossgcc/tarballs/
+util/crossgcc/xgcc/