ARM: imx: Use correct SRC base address

Commit 4a4fb66119 ("ARM: imx: Add missing of_node_put()") accidentally
forgot to rename a variable, which caused the wrong address to be used
and, in our case, the ULL getting falsely identified as ULZ.

Fixes: 4a4fb66119 ("ARM: imx: Add missing of_node_put()")
Signed-off-by: Robert Karszniewicz <r.karszniewicz@phytec.de>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm/mach-imx/anatop.c

@@ -136,7 +136,7 @@ void __init imx_init_revision_from_anatop(void)
 
 			src_np = of_find_compatible_node(NULL, NULL,
 						     "fsl,imx6ul-src");
-			src_base = of_iomap(np, 0);
+			src_base = of_iomap(src_np, 0);
 			of_node_put(src_np);
 			WARN_ON(!src_base);
 			sbmr2 = readl_relaxed(src_base + SRC_SBMR2);