Documentation: MIPS supports HAVE_REGS_AND_STACK_ACCESS_API

This should have been part of 40e084a5

 ('MIPS: Add uprobes support.').

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Fixes: 40e084a5

 ("MIPS: Add uprobes support.")
Acked-by: Jonathan Corbet <corbet@lwn.net>
Cc: linux-mips@linux-mips.org
Cc: linux-doc@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/14392/


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