modify include .gitignore to ignore check_config generated when build fails due to incorrect config
diff --git a/include/.gitignore b/include/.gitignore
index feab4e2..53a36d4 100644
--- a/include/.gitignore
+++ b/include/.gitignore
@@ -1,3 +1,4 @@
 Makefile
 *.sln
 *.vcxproj
+polarssl/check_config