MT#55283 add missing build flags to preload libs

Change-Id: If2766fbcb090b483ae58ae519a5f8f70d66c4274
(cherry picked from commit c53e7f9f03)

t/Makefile

@@ -353,10 +353,10 @@ PRELOAD_CFLAGS += -D_GNU_SOURCE -std=c11
 PRELOAD_LIBS += -ldl
 
 tests-preload.so:	tests-preload.c
-	$(CC) $(PRELOAD_CFLAGS) -o $@ -shared -fPIC $< $(PRELOAD_LIBS)
+	$(CC) $(PRELOAD_CFLAGS) ${CFLAGS_DEFAULT} -o $@ -shared -fPIC $(LDFLAGS_DEFAULT) $< $(PRELOAD_LIBS)
 
 time-fudge-preload.so:	time-fudge-preload.c
-	$(CC) $(PRELOAD_CFLAGS) -o $@ -shared -fPIC $< $(PRELOAD_LIBS)
+	$(CC) $(PRELOAD_CFLAGS) ${CFLAGS_DEFAULT} -o $@ -shared -fPIC $(LDFLAGS_DEFAULT) $< $(PRELOAD_LIBS)
 
 spandsp_send_fax_pcm.c:	../lib/spandsp_logging.h
 spandsp_send_fax_t38.c:	../lib/spandsp_logging.h