Normalize the include guard style.

An leading underscore followed by a capital letter is a reserved
name space in C and C++.

This change also moves any #include directives within the include
guard in some of the compiler/codegen/arm header files.

Change-Id: I9715e2c5301699d31886e61d0fe6e29483555a2a
diff --git a/vm/InlineNative.h b/vm/InlineNative.h
index 64caec9..101ddd1 100644
--- a/vm/InlineNative.h
+++ b/vm/InlineNative.h
@@ -17,8 +17,8 @@
 /*
  * Inlined native functions.
  */
-#ifndef _DALVIK_INLINENATIVE
-#define _DALVIK_INLINENATIVE
+#ifndef DALVIK_INLINENATIVE_H_
+#define DALVIK_INLINENATIVE_H_
 
 /* startup/shutdown */
 bool dvmInlineNativeStartup(void);
@@ -190,4 +190,4 @@
 bool javaLangDouble_longBitsToDouble(u4 arg0, u4 arg1, u4 arg2, u4 arg,
                                      JValue* pResult);
 
-#endif /*_DALVIK_INLINENATIVE*/
+#endif  // DALVIK_INLINENATIVE_H_