misc: atsha204a: Add support for atsha204 chip

atsha204 chip is predecessor of atsha204a chip. Current U-Boot driver
atsha204a-i2c.c can use both atsha204 and atsha204a chips because it does
not call specific functions to just one of these chips.

So just add compatible string for atsha204.

Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Heiko Schocher <hs@denx.de>
diff --git a/drivers/misc/atsha204a-i2c.c b/drivers/misc/atsha204a-i2c.c
index 5da8134..aa6acf0 100644
--- a/drivers/misc/atsha204a-i2c.c
+++ b/drivers/misc/atsha204a-i2c.c
@@ -283,6 +283,7 @@
 }
 
 static const struct udevice_id atsha204a_ids[] = {
+	{ .compatible = "atmel,atsha204" },
 	{ .compatible = "atmel,atsha204a" },
 	{ }
 };