clang-format: Specify lambda formatting style

Change-Id: I32ae4e6c28e19be96cb1195ada704dfacc9845b1
Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
diff --git a/.clang-format b/.clang-format
index abedc25..be651e7 100644
--- a/.clang-format
+++ b/.clang-format
@@ -81,6 +81,7 @@
 MacroBlockEnd:   ''
 MaxEmptyLinesToKeep: 1
 NamespaceIndentation: None
+LambdaBodyIndentation: OuterScope
 ObjCBlockIndentWidth: 2
 ObjCSpaceAfterProperty: false
 ObjCSpaceBeforeProtocolList: true
@@ -112,3 +113,4 @@
 TabWidth:        4
 UseTab:          Never
 ...
+