sparc64: Fix off by one in trampoline TLB mapping installation loop.

[ Upstream commit 63d499662aeec1864ec36d042aca8184ea6a938e ]

Reported-by: Kirill Tkhai <tkhai@yandex.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Conflicts:

	arch/sparc/kernel/trampoline_64.S