libfdt: move CONFIG_OF_LIBFDT and CONFIG_FIT to lib/Makefile

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>

lib/Makefile

@@ -13,7 +13,8 @@ obj-$(CONFIG_LZO) += lzo/
 obj-$(CONFIG_ZLIB) += zlib/
 obj-$(CONFIG_BZIP2) += bzip2/
 obj-$(CONFIG_TIZEN) += tizen/
-obj-y += libfdt/
+obj-$(CONFIG_OF_LIBFDT) += libfdt/
+obj-$(CONFIG_FIT) += libfdt/
 
 obj-$(CONFIG_AES) += aes.o
 obj-$(CONFIG_USB_TTY) += circbuf.o

lib/libfdt/Makefile

@@ -5,8 +5,5 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-COBJS-libfdt += fdt.o fdt_ro.o fdt_rw.o fdt_strerror.o fdt_sw.o fdt_wip.o \
+obj-y += fdt.o fdt_ro.o fdt_rw.o fdt_strerror.o fdt_sw.o fdt_wip.o \
 	fdt_empty_tree.o fdt_addresses.o
-
-obj-$(CONFIG_OF_LIBFDT) += $(COBJS-libfdt)
-obj-$(CONFIG_FIT) += $(COBJS-libfdt)