[nrf fromtree] cmake: linker: ld: fix duplicate LINK_FLAGS

Original implementation of `toolchain_linker_finalize` duplicates
the `LINK_FLAGS` in the link command. This can cause some problems
like duplicate definitions when using link options like
`--whole-archive`.

This commit fixes it by removing the duplicate `LINK_FLAGS`.

Fixes #82281

Signed-off-by: Axel Le Bourhis <[email protected]>
(cherry picked from commit 8413113)

Author: axelnxp

cmake/linker/ld/target.cmake

@@ -148,7 +148,7 @@ macro(toolchain_linker_finalize)
   endforeach()
   string(REPLACE ";" " " zephyr_std_libs "${zephyr_std_libs}")
 
-  set(link_libraries "<LINK_FLAGS> <OBJECTS> -o <TARGET> <LINK_LIBRARIES> ${zephyr_std_libs}")
+  set(link_libraries "<OBJECTS> -o <TARGET> <LINK_LIBRARIES> ${zephyr_std_libs}")
   set(common_link "<LINK_FLAGS> ${link_libraries}")
 
   set(CMAKE_ASM_LINK_EXECUTABLE "<CMAKE_ASM_COMPILER> <FLAGS> <CMAKE_ASM_LINK_FLAGS> ${common_link}")