Add -fuse-ld=bfd to x86 target

Add -fuse-ld=bfd because ld.gold doesn't support "--copy-dt-needed-entries".

Change-Id: Ie6fa0a2ddfc57b650552c8cf0891f738a5be0dda
diff --git a/core/combo/TARGET_linux-x86.mk b/core/combo/TARGET_linux-x86.mk
index 28c031d..9c0f7b9 100644
--- a/core/combo/TARGET_linux-x86.mk
+++ b/core/combo/TARGET_linux-x86.mk
@@ -186,12 +186,14 @@
 endef
 
 
+# Add -fuse-ld=bfd because ld.gold doesn't support "--copy-dt-needed-entries".
 define transform-o-to-executable-inner
 $(hide) $(PRIVATE_CXX) \
 	$(TARGET_GLOBAL_LDFLAGS) \
 	-nostdlib -Bdynamic \
 	-Wl,-dynamic-linker,/system/bin/linker \
 	-Wl,--copy-dt-needed-entries \
+	-fuse-ld=bfd \
 	-Wl,-z,nocopyreloc \
 	-fPIE -pie \
 	-o $@ \