post: convert makefiles to Kbuild style
This commit also deletes post/rules.mk,
which in not necessary any more.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
diff --git a/post/board/lwmon5/Makefile b/post/board/lwmon5/Makefile
index b410dbb..d8b1952 100644
--- a/post/board/lwmon5/Makefile
+++ b/post/board/lwmon5/Makefile
@@ -4,10 +4,7 @@
# Developed for DENX Software Engineering GmbH
#
# SPDX-License-Identifier: GPL-2.0+
-include $(OBJTREE)/include/autoconf.mk
-LIB = libpostlwmon5.o
+CPPFLAGS += -I$(TOPDIR)
-COBJS-$(CONFIG_HAS_POST) += sysmon.o watchdog.o dspic.o fpga.o dsp.o gdc.o
-
-include $(TOPDIR)/post/rules.mk
+obj-$(CONFIG_HAS_POST) += sysmon.o watchdog.o dspic.o fpga.o dsp.o gdc.o