s390: select ARCH_USE_SYM_ANNOTATIONS

All old style assembly annotations have been converted for s390. Select
ARCH_USE_SYM_ANNOTATIONS to make sure the old macros like ENTRY() aren't
available anymore. This prevents that new code which uses the old macros
will be added again.

This follows what has been done for x86 with commit 2ce0d7f9766f ("x86/asm:
Provide a Kconfig symbol for disabling old assembly annotations") and for
arm64 with commit 50479d58eaa3 ("arm64: Disable old style assembly
annotations").

Signed-off-by: Heiko Carstens <[e-mail]>
Signed-off-by: Vasily Gorbik <[e-mail]>

arch/s390/Kconfig

···
 	select ARCH_SUPPORTS_NUMA_BALANCING
 	select ARCH_USE_BUILTIN_BSWAP
 	select ARCH_USE_CMPXCHG_LOCKREF
+	select ARCH_USE_SYM_ANNOTATIONS
 	select ARCH_WANTS_DYNAMIC_TASK_STRUCT
 	select ARCH_WANTS_NO_INSTR
 	select ARCH_WANT_DEFAULT_BPF_JIT