radv: add initial non-conformant radv vulkan driver

This squashes all the radv development up until now into
one for merging.

History can be found:
https://github.com/airlied/mesa/tree/semi-interesting

This requires llvm 3.9 and is in no way considered
a conformant vulkan implementation. It can run a number
of vulkan applications, and supports all GPUs using
the amdgpu kernel driver.

Thanks to Intel for providing anv and spirv->nir,
and Emil Velikov for reviewing build integration.

Parts of this are:
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Acked-by: Edward O'Callaghan <funfunctor@folklore1984.net>

Authors: Bas Nieuwenhuizen and Dave Airlie
Signed-off-by: Dave Airlie <airlied@redhat.com>

src/Makefile.am

@@ -74,7 +74,7 @@ endif
 # include only conditionally ?
 SUBDIRS += compiler
 
-if HAVE_GALLIUM_RADEON_COMMON
+if HAVE_AMD_DRIVERS
 SUBDIRS += amd
 endif
 
@@ -120,6 +120,12 @@ if HAVE_INTEL_VULKAN
 SUBDIRS += intel/vulkan
 endif
 
+# Requires wayland-drm
+if HAVE_RADEON_VULKAN
+SUBDIRS += amd/common
+SUBDIRS += amd/vulkan
+endif
+
 if HAVE_GALLIUM
 SUBDIRS += gallium
 endif