add .clang-format

Add .clang-format for automatic style.

Change-Id: I91e9acb28ca4218eba58dc13d10773bcb39c338f
Signed-off-by: Patrick Venture <venture@google.com>
diff --git a/sbe_interfaces.hpp b/sbe_interfaces.hpp
old mode 100755
new mode 100644
index ab3877e..61ff37c
--- a/sbe_interfaces.hpp
+++ b/sbe_interfaces.hpp
@@ -18,9 +18,7 @@
  * @param[in] SCOM register address.
  * @return The register data
  */
-uint64_t read(const char* devPath,
-              uint64_t address);
-
+uint64_t read(const char* devPath, uint64_t address);
 
 /**
  * @brief Write processor SCOM register.
@@ -31,10 +29,8 @@
  * @param[in] SCOM register address.
  * @param[in] Data to be written into the register.
  */
-void write(const char* devPath,
-           uint64_t address,
-           uint64_t data);
+void write(const char* devPath, uint64_t address, uint64_t data);
 
-}//namespace scom
-}//namespace sbe
-}//namespace openpower
+} // namespace scom
+} // namespace sbe
+} // namespace openpower