SurfaceFlinger: Import hardware flags from aconfig

For Luts follow-up implementation.

Bug: n/a
Change-Id: If7f18fcbf76e46694f79f9b5056ff149a0d387f0
Test: builds
Flag: EXEMPT FlagManager change
diff --git a/services/surfaceflinger/common/FlagManager.cpp b/services/surfaceflinger/common/FlagManager.cpp
index e28a0c1..858f759 100644
--- a/services/surfaceflinger/common/FlagManager.cpp
+++ b/services/surfaceflinger/common/FlagManager.cpp
@@ -27,6 +27,7 @@
 #include <cinttypes>
 
 #include <android_os.h>
+#include <android_hardware_flags.h>
 #include <com_android_graphics_libgui_flags.h>
 #include <com_android_graphics_surfaceflinger_flags.h>
 #include <com_android_server_display_feature_flags.h>
@@ -279,5 +280,6 @@
 FLAG_MANAGER_ACONFIG_FLAG_IMPORTED(adpf_use_fmq_channel_fixed, "", android::os)
 FLAG_MANAGER_ACONFIG_FLAG_IMPORTED(trace_frame_rate_override, "",
                                    com::android::graphics::libgui::flags);
-
+FLAG_MANAGER_ACONFIG_FLAG_IMPORTED(luts_api, "",
+                                   android::hardware::flags);
 } // namespace android