clang-format: Specify AllowShort*OnASingleLine properties

Codify existing practice in the library to minimise churn

Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Change-Id: I5bc29d7425729c86dd15fab45a37dff7c304b289
diff --git a/.clang-format b/.clang-format
index a3ef233..ebdee49 100644
--- a/.clang-format
+++ b/.clang-format
@@ -2,5 +2,9 @@
 IndentWidth: 8
 UseTab: Always
 BreakBeforeBraces: Linux
+AllowShortBlocksOnASingleLine: Empty
+AllowShortCaseLabelsOnASingleLine: false
+AllowShortFunctionsOnASingleLine: Empty
 AllowShortIfStatementsOnASingleLine: false
+AllowShortLoopsOnASingleLine: false
 IndentCaseLabels: false