linux-wandboard

ppc64: Add declarations to ppc64 headers as well as powerpc headers

For now, we need these declarations that we moved from C code in
the asm-ppc64 versions of these headers as well as the asm-powerpc
versions.  The asm-ppc64 versions will be disappearing shortly.

Signed-off-by: Paul Mackerras <paulus@samba.org>