lib: convert makefiles to Kbuild style
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
diff --git a/lib/libfdt/Makefile b/lib/libfdt/Makefile
index 07373df..a02c9b0 100644
--- a/lib/libfdt/Makefile
+++ b/lib/libfdt/Makefile
@@ -5,30 +5,7 @@
# SPDX-License-Identifier: GPL-2.0+
#
-include $(TOPDIR)/config.mk
-
-LIB = $(obj)libfdt.o
-
-SOBJS =
-
COBJS-libfdt += fdt.o fdt_ro.o fdt_rw.o fdt_strerror.o fdt_sw.o fdt_wip.o fdt_empty_tree.o
-COBJS-$(CONFIG_OF_LIBFDT) += $(COBJS-libfdt)
-COBJS-$(CONFIG_FIT) += $(COBJS-libfdt)
-
-
-COBJS := $(sort $(COBJS-y))
-SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c)
-OBJS := $(addprefix $(obj),$(SOBJS) $(COBJS))
-
-$(LIB): $(obj).depend $(OBJS)
- $(call cmd_link_o_target, $(OBJS))
-
-#########################################################################
-
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
-
-sinclude $(obj).depend
-
-#########################################################################
+obj-$(CONFIG_OF_LIBFDT) += $(COBJS-libfdt)
+obj-$(CONFIG_FIT) += $(COBJS-libfdt)