MIPS: Bonito64: remove a duplicate define

BONITO_PCIMEMBASECFG_ADDRMASK was cut and pasted twice so we can delete
the second define.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: kernel-janitors@vger.kernel.org
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/7062/


Signed-off-by: Ralf Baechle <ralf@linux-mips.org>