Add RENDERDOC_X86_PROC_FAMILY CMake and RDOC_X86_FAMILY C switches This can build useful when trying to build renderdoc on unsupported platforms. For example, if trying to build renderdoc on ARM, but without targeting ANDROID, the compressonator code will fail to compile. Instead of depending on the BUILD_ANDROID flag, we can use the RENDERDOC_X86 flag.
linux_process: Only use ptrace for x86 family processors Although ptrace should be usable for other processor families, for now simply skipping the paths seems to work. I tested this by skipping the ptrace paths on x86.
