gitignore: add vscode

Change-Id: I2e13b9aece30f866c19351f4420665ad9b745f98
Signed-off-by: Andrew Geissler <geissonator@yahoo.com>
diff --git a/.gitignore b/.gitignore
index a5309e6..90350c0 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,2 @@
 build*/
+.vscode/