c6x's asm/mmu.h is basically identical to asm-generic/mmu.h, so use it instead
of the custom version.
Signed-off-by: NLars-Peter Clausen <lars@metafoo.de>
Acked-by: NMark Salter <msalter@redhat.com>
Tested-by: NMark Salter <msalter@redhat.com>
Signed-off-by: NArnd Bergmann <arnd@arndb.de>