zdtm/test/rtc: build 64-bit criu-rtc.so

It's library plugin to CRIU - it needs to be 64-bit.

travis-ci: success for zdtm/test/rtc: build 64-bit criu-rtc.so
Signed-off-by: Dmitry Safonov <dsafonov@virtuozzo.com>
Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>
Signed-off-by: Andrei Vagin <avagin@virtuozzo.com>

test/zdtm/static/Makefile

@@ -483,6 +483,6 @@ criu-rtc.pb-c.c: criu-rtc.proto
 	protoc-c --proto_path=. --c_out=. criu-rtc.proto
 
 criu-rtc.so: criu-rtc.c criu-rtc.pb-c.c
-	$(CC) -g -Wall -shared -nostartfiles criu-rtc.c criu-rtc.pb-c.c -o criu-rtc.so -iquote ../../../criu/include -fPIC $(USERCFLAGS)
+	$(CC) -g -Wall -shared -nostartfiles criu-rtc.c criu-rtc.pb-c.c -o criu-rtc.so -iquote ../../../criu/include -fPIC $(filter-out -m32,$(USERCFLAGS))
 
 .PHONY:	force clean cleandep cleanout realclean start check_start stop wait_stop