powerpc/mm/drmem: Silence drmem_init() early return

It's not an error or noteworthy condition if the
"ibm,dynamic-reconfiguration-memory" node isn't present.

Drop the needless message.
Signed-off-by: Nathan Lynch <nathanl@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20240603-silence-drmem_init-v1-1-e9d71646bc3d@linux.ibm.com

arch/powerpc/mm/drmem.c

@@ -491,10 +491,8 @@ static int __init drmem_init(void)
 	const __be32 *prop;
 
 	dn = of_find_node_by_path("/ibm,dynamic-reconfiguration-memory");
-	if (!dn) {
-		pr_info("No dynamic reconfiguration memory found\n");
+	if (!dn)
 		return 0;
-	}
 
 	if (init_drmem_lmb_size(dn)) {
 		of_node_put(dn);