make: Report dependencies absence more exactly

I bumped in this myself when I had libc6-dev-i386 installed,
while criu said I didn't. Save other guys'es time, spent
in this place.
Signed-off-by: Kirill Tkhai <ktkhai@virtuozzo.com>
Acked-by: Dmitry Safonov <dsafonov@virtuozzo.com>
Signed-off-by: Andrei Vagin <avagin@virtuozzo.com>

Makefile.config

@@ -25,8 +25,8 @@ ifeq ($(call try-cc,$(FEATURE_TEST_X86_COMPAT),-m32),true)
         export CONFIG_COMPAT := y
         FEATURE_DEFINES	+= -DCONFIG_COMPAT
 else
-        $(info Note: Building without ia32 C/R, missed packages:)
-        $(info $(info)      libc6-dev-i386, gcc-multilib)
+        $(info Note: Building without ia32 C/R, missed package(s):)
+        $(info $(info)      libc6-dev-i386 and/or gcc-multilib)
 endif
 endif