armv8: ls2080a: Update fdt path for fsl-mc node

The fsl-mc node has been moved under /soc, so update
the path references accordingly.  Backwards compatibility
is retained for /fsl-mc.

Delete backwards compatibility for the completely obsolete
/fsl,dprc@0.

Signed-off-by: Stuart Yoder <stuart.yoder@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
diff --git a/board/freescale/ls2080aqds/ls2080aqds.c b/board/freescale/ls2080aqds/ls2080aqds.c
index aa256a2..f3925e2 100644
--- a/board/freescale/ls2080aqds/ls2080aqds.c
+++ b/board/freescale/ls2080aqds/ls2080aqds.c
@@ -258,10 +258,10 @@
 {
 	int offset;
 
-	offset = fdt_path_offset(fdt, "/fsl-mc");
+	offset = fdt_path_offset(fdt, "/soc/fsl-mc");
 
 	if (offset < 0)
-		offset = fdt_path_offset(fdt, "/fsl,dprc@0");
+		offset = fdt_path_offset(fdt, "/fsl-mc");
 
 	if (offset < 0) {
 		printf("%s: ERROR: fsl-mc node not found in device tree (error %d)\n",