tools: ynl: use uAPI include magic for samples

Makefile.deps provides direct includes in CFLAGS_$(obj).
We just need to rewrite the rules to make use of the extra
flags, no need to hard-include all of tools/include/uapi.

Acked-by: Stanislav Fomichev <sdf@google.com>
Link: https://lore.kernel.org/r/20231003153416.2479808-4-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

tools/net/ynl/samples/Makefile

@@ -4,7 +4,7 @@ include ../Makefile.deps
 
 CC=gcc
 CFLAGS=-std=gnu11 -O2 -W -Wall -Wextra -Wno-unused-parameter -Wshadow \
-	-I../../../include/uapi -I../lib/ -I../generated/ -idirafter $(UAPI_PATH)
+	-I../lib/ -I../generated/ -idirafter $(UAPI_PATH)
 ifeq ("$(DEBUG)","1")
   CFLAGS += -g -fsanitize=address -fsanitize=leak -static-libasan
 endif
@@ -19,6 +19,9 @@ include $(wildcard *.d)
 all: $(BINS)
 
 $(BINS): ../lib/ynl.a ../generated/protos.a
+	@echo -e '\tCC sample $@'
+	@$(COMPILE.c) $(CFLAGS_$@) $@.c -o $@.o
+	@$(LINK.c) $@.o -o $@  $(LDLIBS)
 
 clean:
 	rm -f *.o *.d *~