replaces reference to userspace framebuffer with screen

fixes build break

Test: local
Change-Id: I7e5055fb699bfe819ce6d99f42bce396c7e1f7bf
diff --git a/shared/sepolicy/hal_graphics_composer.te b/shared/sepolicy/hal_graphics_composer.te
index d98dbe8..089e59d 100644
--- a/shared/sepolicy/hal_graphics_composer.te
+++ b/shared/sepolicy/hal_graphics_composer.te
@@ -1,2 +1,2 @@
 allow hal_graphics_composer_server hal_graphics_allocator_default_tmpfs:file read;
-allow hal_graphics_composer_server userspace_fb_file:file ioctl;
+allow hal_graphics_composer_server region_screen_device:chr_file rw_file_perms;