clang-format: copy latest and re-format

Copy the latest .clang-format from the docs repository and reformat the
repository.

Change-Id: I0660e9f3f0a6a54fc229e034191295a27ffd5c52
Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
diff --git a/.clang-format b/.clang-format
index 6da79a0..0683c55 100644
--- a/.clang-format
+++ b/.clang-format
@@ -67,6 +67,7 @@
     Priority: 1
 IncludeIsMainRegex: '(Test)?$'
 IndentCaseLabels: false
+IndentExternBlock: NoIndent
 #IndentPPDirectives: None # Unknown to clang-format-5.0
 IndentWidth: 8
 IndentWrappedFunctionNames: false