[NFC][libspirv][CMake] Let libclc depends on libspirv-builtins (#20183)

Align dependency handling with 76bebb5

Author: wenju-he

libclc/CMakeLists.txt

@@ -55,6 +55,9 @@ add_custom_target( libclc ALL )
 add_custom_target( libclc-opencl-builtins COMMENT "Build libclc OpenCL builtins" )
 add_dependencies( libclc libclc-opencl-builtins )
 
+add_custom_target( libspirv-builtins COMMENT "Build libspirv builtins" )
+add_dependencies( libclc libspirv-builtins )
+
 if( LIBCLC_STANDALONE_BUILD OR CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR )
   # Out-of-tree configuration
   set( LIBCLC_STANDALONE_BUILD TRUE )
@@ -178,8 +181,6 @@ if( "spirv-mesa3d-" IN_LIST LIBCLC_TARGETS_TO_BUILD OR "spirv64-mesa3d-" IN_LIST
   endif()
 endif()
 
-add_custom_target(libspirv-builtins COMMENT "Build libspirv builtins")
-
 if( LIBCLC_TARGETS_TO_BUILD STREQUAL "all" )
   set( LIBCLC_TARGETS_TO_BUILD ${LIBCLC_TARGETS_ALL} )
 else()