cpu: add CPU driver for Broadcom MIPS SoCs

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/cpu/Makefile b/drivers/cpu/Makefile
index 8710160..db515f6 100644
--- a/drivers/cpu/Makefile
+++ b/drivers/cpu/Makefile
@@ -5,3 +5,5 @@
 # SPDX-License-Identifier:      GPL-2.0+
 #
 obj-$(CONFIG_CPU) += cpu-uclass.o
+
+obj-$(CONFIG_ARCH_BMIPS) += bmips_cpu.o