misc: atsha204a: fix i2c address readout from DTS

This patch replaces use fdtdec_get_addr with simpler dev_read_addr().
fdtdec_get_addr doesn't work properly on ZynqMP-based (64bit) system. Although
not confirmed, it could be related to the fact, that quoting the documentation,
"This variant hard-codes the number of cells used to represent the address and
size based on sizeof(fdt_addr_t) and sizeof(fdt_size_t)".

Signed-off-by: Adrian Fiergolski <adrian.fiergolski@fastree3d.com>
Reviewed-by: Marek Behún <marek.behun@nic.cz>

drivers/misc/atsha204a-i2c.c

@@ -388,7 +388,7 @@ static int atsha204a_of_to_plat(struct udevice *dev)
 	fdt_addr_t *priv = dev_get_priv(dev);
 	fdt_addr_t addr;
 
-	addr = fdtdec_get_addr(gd->fdt_blob, dev_of_offset(dev), "reg");
+	addr = dev_read_addr(dev);
 	if (addr == FDT_ADDR_T_NONE) {
 		debug("Can't get ATSHA204A I2C base address\n");
 		return -ENXIO;