[CMake] Use #cmakedefine01 for CLANG_ENABLE_(ARCMT|OBJC_REWRITER|STATIC_ANALYZER)

It'd be better that they are #cmakedefine01 rather than #cmakedefine.
(#if FOO rather than #if defined(FOO))
Then we can find missing #include "clang/Config/config.h" in the future.

Differential Revision: https://reviews.llvm.org/D35541

llvm-svn: 316061