mach-k3: fix reading size and addr from fdt on R5

fdtdec_get_addr_size uses architecture dependent datatypes which causes
the 32-bit R5 to fail when reading the 64-bit size and addr fields of
reg nodes from the fdt.

Therefore change it to a common api for both 64 and 32 bit platforms to
allow for fdt fixups from R5.

Fixes: 8b0fc29de0 ("arm: mach-k3: am62: Fixup TF-A/OP-TEE reserved-memory node in FDT")
Signed-off-by: Anshul Dalal <anshuld@ti.com>
Reviewed-by: Dhruva Gole <d-gole@ti.com>

arch/arm/mach-k3/common_fdt.c

@@ -140,7 +140,9 @@ int fdt_fixup_reserved(void *blob, const char *name,
 			return -EINVAL;
 		if (!strncmp(node_name, name, strlen(name))) {
 			/* Read out old size first */
-			addr = fdtdec_get_addr_size(blob, subnode, "reg", &size);
+			addr = fdtdec_get_addr_size_auto_parent(
+				blob, nodeoffset, subnode, "reg", 0, &size,
+				false);
 			if (addr == FDT_ADDR_T_NONE)
 				return -EINVAL;
 			new_size = size;