ilo: advertise PIPE_CAP_CUBE_MAP_ARRAY

It was supported but not advertised.  Also remove TODO tag for
PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT, as it is not a TODO.

src/gallium/drivers/ilo/ilo_screen.c

@@ -403,9 +403,8 @@ ilo_get_param(struct pipe_screen *screen, enum pipe_cap param)
    case PIPE_CAP_TEXTURE_MULTISAMPLE:
       return false; /* TODO */
    case PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT:
-      return 0; /* TODO */
+      return 0;
    case PIPE_CAP_CUBE_MAP_ARRAY:
-      return false; /* TODO */
    case PIPE_CAP_TEXTURE_BUFFER_OBJECTS:
       return true;
    case PIPE_CAP_TEXTURE_BUFFER_OFFSET_ALIGNMENT: