Fully disable clang format where needed.

Even with formatting off, clang still tries to rearrange the include
files or the using statements, so disable that too.

Test: Verified that the include directories are not rearranged.
Change-Id: I991a1b2bfa94a8202c5a486664658d654f1c7811
diff --git a/libc/upstream-openbsd/.clang-format b/libc/upstream-openbsd/.clang-format
index e384528..39789c8 100644
--- a/libc/upstream-openbsd/.clang-format
+++ b/libc/upstream-openbsd/.clang-format
@@ -1 +1,3 @@
 DisableFormat: true
+SortIncludes: false
+SortUsingDeclarations: false