kbuild: move archive command to scripts/Makefile.lib

Backport from kernel
commit 898f5a009f22 ("kbuild: move archive command to scripts/Makefile.lib")

Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
diff --git a/scripts/Makefile.build b/scripts/Makefile.build
index 73e1d71..d90b0b7 100644
--- a/scripts/Makefile.build
+++ b/scripts/Makefile.build
@@ -355,11 +355,9 @@
 # Rule to compile a set of .o files into one .a file
 #
 ifdef lib-target
-quiet_cmd_link_l_target = AR      $@
-cmd_link_l_target = rm -f $@; $(AR) rcsTP$(KBUILD_ARFLAGS) $@ $(real-prereqs)
 
 $(lib-target): $(lib-y) FORCE
-	$(call if_changed,link_l_target)
+	$(call if_changed,ar)
 
 targets += $(lib-target)
 endif
diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib
index 28295c7..c441be3 100644
--- a/scripts/Makefile.lib
+++ b/scripts/Makefile.lib
@@ -278,6 +278,11 @@
 quiet_cmd_ld = LD      $@
 cmd_ld = $(LD) $(ld_flags) $(filter-out FORCE,$^) -o $@
 
+# Archive
+# ---------------------------------------------------------------------------
+quiet_cmd_ar = AR      $@
+cmd_ar = rm -f $@; $(AR) rcsTP$(KBUILD_ARFLAGS) $@ $(real-prereqs)
+
 # Objcopy
 # ---------------------------------------------------------------------------