MT#55283 honour "nouring" build profile

Change-Id: I6f4d5bda6325d1d001a9c0bf6de3627160f50451

lib/lib.Makefile

@@ -46,6 +46,7 @@ LDLIBS+=	$(shell pkg-config --libs libsystemd)
 endif
 
 # look for liburing
+ifeq (,$(filter pkg.ngcp-rtpengine.nouring,${DEB_BUILD_PROFILES}))
 ifeq ($(shell pkg-config --exists liburing && echo yes),yes)
 have_liburing := yes
 endif
@@ -54,6 +55,7 @@ CFLAGS+=	$(shell pkg-config --cflags liburing)
 CFLAGS+=	-DHAVE_LIBURING
 LDLIBS+=	$(shell pkg-config --libs liburing)
 endif
+endif
 
 ifeq ($(DBG),yes)
 CFLAGS+=	-D__DEBUG=1