kbuild: use SoC-specific CONFIG to descend into SoC directory
Use "obj-$(CONFIG_FOO) += foo/" where it is possible.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
diff --git a/arch/avr32/cpu/Makefile b/arch/avr32/cpu/Makefile
index 2f7adf8..00cede3 100644
--- a/arch/avr32/cpu/Makefile
+++ b/arch/avr32/cpu/Makefile
@@ -17,4 +17,4 @@
obj-$(CONFIG_PORTMUX_PIO) += portmux-pio.o
obj-$(CONFIG_PORTMUX_GPIO) += portmux-gpio.o
-obj-y += $(if $(SOC),$(SOC)/)
+obj-$(if $(filter at32ap700x,$(SOC)),y) += at32ap700x/