Define the KM_NORMALPRI flag for kmem_alloc(), as it is used in some

upstream DTrace code. It indicates that the kernel memory allocator need not
attempt to satisfy non-blocking allocations in low-memory conditions. This
has no direct equivalent in the malloc(9) flags, so it is just defined to 0
for now.

sys/cddl/compat/opensolaris/sys/kmem.h

@@ -47,6 +47,7 @@ MALLOC_DECLARE(M_SOLARIS);
 #define	KM_PUSHPAGE		M_WAITOK
 #define	KM_NOSLEEP		M_NOWAIT
 #define	KM_NODEBUG		M_NODUMP
+#define	KM_NORMALPRI		0
 #define	KMC_NODEBUG		UMA_ZONE_NODUMP
 #define	KMC_NOTOUCH		0