binutils/binutils: simplify gold dependencies

In preparation of adding a new kernel-type, Yann D. came up
with a change in semantic on binutils/gold availability.

So far, it was architectures' responsibility to declare that
they did support binutils/gold or not. It makes much more sense
that binutils/gold declares its own availability depending on
the current architecture; after all, architectures have no way
to know wether gold supports them, while gold does know it.

Signed-off-by:Yann Diorcet <diorcet.yann@gmail.com>
[yann.morin.1998@free.fr: split up original patch for self-contained changes]
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Message-Id: <d3d1d51f399e6d2c1163.1353320546@macbook-smorlat.local>
Patchwork-Id: 199971

 diff -dur duma_2_5_1.orig/Makefile duma_2_5_1/Makefile

 --- duma_2_5_1.orig/Makefile	2007-07-11 17:49:43.000000000 +0200

 +++ duma_2_5_1/Makefile	2007-07-11 17:50:46.000000000 +0200

 @@ -115,9 +115,14 @@

  	dumatest.c tstheap.c dumatestpp.cpp testoperators.cpp \

  	createconf.c

 -OBJECTS = dumapp.o duma.o sem_inc.o print.o

 +OBJECTS = duma.o sem_inc.o print.o

 +SO_OBJECTS = duma_so.o sem_inc_so.o print_so.o

 +

 +ifeq ($(DUMA_CPP),1)

 +OBJECTS += dumapp.o

 +SO_OBJECTS += dumapp_so.o

 +endif

 -SO_OBJECTS = dumapp_so.o duma_so.o sem_inc_so.o print_so.o

  all:	libduma.a $(DUMASO) tstheap dumatest dumatestpp testoperators tstheap_so dumatestpp_so

  	@ echo "Testing DUMA."