move utility binaries to debug build

src/CMakeLists.txt

@@ -128,8 +128,6 @@ endif()
 add_subdirectory(cryptonote_protocol)
 if(NOT IOS)
   add_subdirectory(simplewallet)
-  add_subdirectory(gen_multisig)
-  add_subdirectory(gen_ssl_cert)
   add_subdirectory(daemonizer)
   add_subdirectory(daemon)
 endif()
@@ -138,6 +136,7 @@ if(BUILD_DEBUG_UTILITIES)
   add_subdirectory(debug_utilities)
   add_subdirectory(blockchain_utilities)
   add_subdirectory(gen_multisig)
+  add_subdirectory(gen_ssl_cert)
 endif()
 
 if(PER_BLOCK_CHECKPOINT)