Fix lld support (#58959)

I have found that when I've made a change to use the lld linker in July,
I've missed to push part of the change that was supposed to go to Arcade.

I am checking it to the runtime repo to ensure that it is fixed for the
RC2 release. I will make the same change in the Arcade repo.

Author: janvorli

eng/common/cross/toolchain.cmake

@@ -138,8 +138,8 @@ function(add_toolchain_linker_flag Flag)
   if (NOT Config STREQUAL "")
     set(CONFIG_SUFFIX "_${Config}")
   endif()
-  set("CMAKE_EXE_LINKER_FLAGS${CONFIG_SUFFIX}" "${CMAKE_EXE_LINKER_FLAGS${CONFIG_SUFFIX}} ${Flag}" PARENT_SCOPE)
-  set("CMAKE_SHARED_LINKER_FLAGS${CONFIG_SUFFIX}" "${CMAKE_SHARED_LINKER_FLAGS${CONFIG_SUFFIX}} ${Flag}" PARENT_SCOPE)
+  set("CMAKE_EXE_LINKER_FLAGS${CONFIG_SUFFIX}_INIT" "${CMAKE_EXE_LINKER_FLAGS${CONFIG_SUFFIX}_INIT} ${Flag}" PARENT_SCOPE)
+  set("CMAKE_SHARED_LINKER_FLAGS${CONFIG_SUFFIX}_INIT" "${CMAKE_SHARED_LINKER_FLAGS${CONFIG_SUFFIX}_INIT} ${Flag}" PARENT_SCOPE)
 endfunction()
 
 if(CMAKE_SYSTEM_NAME STREQUAL "Linux")