clang-tidy: format with config-clang-tidy

Reformat the .clang-tidy file for consistency using the
config-clang-tidy tool from openbmc-build-scripts.

Change-Id: I0f91e2a93ee4d0bacec9266a0204f54fede75d99
Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
diff --git a/.clang-tidy b/.clang-tidy
index 7ecd1b9..597cefb 100644
--- a/.clang-tidy
+++ b/.clang-tidy
@@ -1,2 +1,5 @@
-Checks: 'clang-analyzer-*'
-WarningsAsErrors: 'clang-analyzer-*'
+Checks: '-*,
+    clang-analyzer-*
+    '
+
+WarningsAsErrors: clang-analyzer-*