MIPS: Netlogic: set ARCH_REQUIRE_GPIOLIB for XLP platform

This is needed to enable GPIO framework support for Netlogic XLP platform.

Signed-off-by: Kamlakant Patel <kamlakant.patel@broadcom.com>
Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/10818/


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