Add .clang-format for compiler subdirectory

This is LLVM style generated with
clang-format -style=llvm -dump-config > .clang-format

Ran clang-format -i *.cpp *.h under frameworks/rs/rsov/compiler

Test: mm

Change-Id: Idff461c51d6e88e22795ac0a9cfbe41bc8156bbe
diff --git a/rsov/compiler/RSSPIRVWriter.cpp b/rsov/compiler/RSSPIRVWriter.cpp
index 39632c9..99d5e82 100644
--- a/rsov/compiler/RSSPIRVWriter.cpp
+++ b/rsov/compiler/RSSPIRVWriter.cpp
@@ -30,9 +30,9 @@
 #include "llvm/Transforms/IPO.h"
 
 #include "GlobalMergePass.h"
+#include "InlinePreparationPass.h"
 #include "LinkerModule.h"
 #include "ReflectionPass.h"
-#include "InlinePreparationPass.h"
 
 #include <fstream>
 #include <sstream>