gpg: Avoid use of COMMON section for all cases.
* include/cipher.h (EXTERN_UNLESS_MAIN_MODULE): Remove limitation for __riscos__. * include/iobuf.h: Likewise. * include/memory.h: Likewise. * include/mpi.h: Likewise.
- GnuPG-bug-id: T5215
- Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>