freedreno: few caps fixes

Signed-off-by: Rob Clark <robclark@freedesktop.org>

src/gallium/drivers/freedreno/freedreno_resource.c

 	uint32_t flags = DRM_FREEDRENO_GEM_CACHE_WCOMBINE |
 			DRM_FREEDRENO_GEM_TYPE_KMEM; /* TODO */
 
+	/* if we start using things other than write-combine,
+	 * be sure to check for PIPE_RESOURCE_FLAG_MAP_COHERENT
+	 */
+
 	if (rsc->bo)
 		fd_bo_del(rsc->bo);
 

src/gallium/drivers/freedreno/freedreno_screen.c

 	case PIPE_CAP_MIXED_COLORBUFFER_FORMATS:
 	case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT:
 	case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
-	case PIPE_CAP_SM3:
 	case PIPE_CAP_SEAMLESS_CUBE_MAP:
-	case PIPE_CAP_TEXTURE_BARRIER:
 	case PIPE_CAP_VERTEX_COLOR_UNCLAMPED:
 	case PIPE_CAP_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION:
 	case PIPE_CAP_TGSI_INSTANCEID:
 	case PIPE_CAP_COMPUTE:
 	case PIPE_CAP_START_INSTANCE:
 	case PIPE_CAP_MAX_DUAL_SOURCE_RENDER_TARGETS:
-	case PIPE_CAP_TEXTURE_MULTISAMPLE:
 	case PIPE_CAP_USER_CONSTANT_BUFFERS:
+	case PIPE_CAP_BUFFER_MAP_PERSISTENT_COHERENT:
 		return 1;
 
 	case PIPE_CAP_SHADER_STENCIL_EXPORT:
 	case PIPE_CAP_PREFER_BLIT_BASED_TEXTURE_TRANSFER:
 	case PIPE_CAP_CONDITIONAL_RENDER:
 	case PIPE_CAP_PRIMITIVE_RESTART:
+	case PIPE_CAP_TEXTURE_MULTISAMPLE:
+	case PIPE_CAP_TEXTURE_BARRIER:
+	case PIPE_CAP_SM3:
 		return 0;
 
 	case PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT:
 	case PIPE_CAP_TGSI_VS_LAYER:
 	case PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS:
 	case PIPE_CAP_TEXTURE_GATHER_SM5:
-	case PIPE_CAP_BUFFER_MAP_PERSISTENT_COHERENT:
 	case PIPE_CAP_FAKE_SW_MSAA:
 	case PIPE_CAP_TEXTURE_QUERY_LOD:
 	case PIPE_CAP_SAMPLE_SHADING: