QcomModulePkg: Ignore vararg type auto-promotion warning

Ignore vararg parameter type auto-promotion compiler warning
in GetBestLanguages() API.  Default implementation-defined
behavior is already a set ABI and would require standard
interface change.

Also add compile time build log to .gitignore.

Change-Id: I5f6dee2b3b7bb3a59362f2eaa5451c9ecc15123e
diff --git a/.gitignore b/.gitignore
index 821ed66..ac407d6 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,3 @@
 Build/

 tags/

+build_modulepkg.log