Link .clang-format file to system/core one.
Use the .clang-format-2 found in system/core instead of this which is
not actually being used.
Also, enable clang-format running by default.
All upstream directories are marked as ignoring formatting so that
their source files are not modified.
Test: NA
Change-Id: Icee6030f373fa5f072df162f97e6f34320e3d89a
diff --git a/libc/upstream-netbsd/.clang-format b/libc/upstream-netbsd/.clang-format
new file mode 100644
index 0000000..e384528
--- /dev/null
+++ b/libc/upstream-netbsd/.clang-format
@@ -0,0 +1 @@
+DisableFormat: true