targets/common/target_lists: only do ulv2 if the build system calls for it

src/xrt/targets/common/target_lists.c

@@ -66,7 +66,9 @@
 #include "illixr/illixr_interface.h"
 #endif
 
+#ifdef XRT_BUILD_DRIVER_ULV2
 #include "ultraleap_v2/ulv2_interface.h"
+#endif
 
 /*!
  * Each entry should be a vendor ID (VID), product ID (PID), a "found" function,
@@ -165,7 +167,9 @@ xrt_auto_prober_creator target_auto_list[] = {
     dummy_create_auto_prober,
 #endif
 
+#ifdef XRT_BUILD_DRIVER_ULV2
     ulv2_create_auto_prober,
+#endif
 
     NULL, // Terminate
 };