Merge pull request #22476 from mastertheknife/ppc64le_reenable_clang

ppc64le: Re-enable compiling with Clang

cmake/tools.cmake

@@ -86,8 +86,3 @@ if (LINKER_NAME)
     message(STATUS "Using custom linker by name: ${LINKER_NAME}")
 endif ()
 
-if (ARCH_PPC64LE)
-    if (COMPILER_CLANG OR (COMPILER_GCC AND CMAKE_CXX_COMPILER_VERSION VERSION_LESS 8))
-        message(FATAL_ERROR "Only gcc-8 or higher is supported for powerpc architecture")
-    endif ()
-endif ()