MIPS: Set page size to 16KB for malta SMP defconfigs

For Malta defconfigs which may run on an SMP configuration without
hardware cache anti-aliasing, a 16KB page size is a safer default.
Most notably at the moment it will avoid cache aliasing issues for
multicore proAptiv systems.
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/6579/Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

arch/mips/configs/malta_defconfig

 CONFIG_MIPS_MALTA=y
 CONFIG_CPU_LITTLE_ENDIAN=y
 CONFIG_CPU_MIPS32_R2=y
+CONFIG_PAGE_SIZE_16KB=y
 CONFIG_MIPS_MT_SMP=y
 CONFIG_NR_CPUS=2
 CONFIG_HZ_100=y

arch/mips/configs/maltasmtc_defconfig

 CONFIG_MIPS_MALTA=y
 CONFIG_CPU_LITTLE_ENDIAN=y
 CONFIG_CPU_MIPS32_R2=y
+CONFIG_PAGE_SIZE_16KB=y
 CONFIG_MIPS_MT_SMTC=y
 # CONFIG_MIPS_MT_FPAFF is not set
 CONFIG_NR_CPUS=9

arch/mips/configs/maltasmvp_defconfig

 CONFIG_MIPS_MALTA=y
 CONFIG_CPU_LITTLE_ENDIAN=y
 CONFIG_CPU_MIPS32_R2=y
+CONFIG_PAGE_SIZE_16KB=y
 CONFIG_MIPS_MT_SMP=y
 CONFIG_SCHED_SMT=y
 CONFIG_MIPS_CMP=y