s390: select CONFIG_ARCH_WANT_LD_ORPHAN_WARN

Now that all sections have been properly accounted for in the s390
linker scripts, select CONFIG_ARCH_WANT_LD_ORPHAN_WARN so that
'--orphan-handling' is added to LDFLAGS to catch any future sections
that are added without being described in linker scripts.
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Tested-by: Justin Stitt <justinstitt@google.com>
Link: https://lore.kernel.org/r/20240207-s390-lld-and-orphan-warn-v1-10-8a665b3346ab@kernel.orgSigned-off-by: Heiko Carstens <hca@linux.ibm.com>

arch/s390/Kconfig

@@ -127,6 +127,7 @@ config S390
 	select ARCH_WANT_DEFAULT_BPF_JIT
 	select ARCH_WANT_IPC_PARSE_VERSION
 	select ARCH_WANT_KERNEL_PMD_MKWRITE
+	select ARCH_WANT_LD_ORPHAN_WARN
 	select ARCH_WANT_OPTIMIZE_HUGETLB_VMEMMAP
 	select BUILDTIME_TABLE_SORT
 	select CLONE_BACKWARDS2