MIPS: Netlogic: Add XLP makefiles and config

- Add CPU_XLP and NLM_XLR_BOARD to arch/mips/Kconfig for Netlogic XLP boards
- Update mips Makefiles to add XLP

Signed-off-by: Jayachandran C <jayachandranc@netlogicmicro.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2968/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/netlogic/Makefile b/arch/mips/netlogic/Makefile
index 797326d..36d169b 100644
--- a/arch/mips/netlogic/Makefile
+++ b/arch/mips/netlogic/Makefile
@@ -1,2 +1,3 @@
 obj-$(CONFIG_NLM_COMMON)	+=	common/
 obj-$(CONFIG_CPU_XLR)		+=	xlr/
+obj-$(CONFIG_CPU_XLP)		+=	xlp/