selftests/bpf: Move test_queue_stack_map.h into progs/ where it belongs

test_queue_stack_map.h is used only from BPF programs. Thus it should be
part of progs/ subdir. An added benefit of moving it there is that new
TEST_RUNNER_DEFINE_RULES macro-rule will properly capture dependency on
this header for all BPF objects and trigger re-build, if it changes.
Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20191016060051.2024182-7-andriin@fb.com

tools/testing/selftests/bpf/Makefile

@@ -153,9 +153,6 @@ CLANG_CFLAGS = $(CLANG_SYS_INCLUDES) \
 $(OUTPUT)/test_l4lb_noinline.o: BPF_CFLAGS += -fno-inline
 $(OUTPUT)/test_xdp_noinline.o: BPF_CFLAGS += -fno-inline
 
-$(OUTPUT)/test_queue_map.o: test_queue_stack_map.h
-$(OUTPUT)/test_stack_map.o: test_queue_stack_map.h
-
 $(OUTPUT)/flow_dissector_load.o: flow_dissector_load.h
 
 # Build BPF object using Clang