ARC: HSDK: CGU: Use plat data instead of priv data

Correctly allocate hsdk_cgu_clk private data structure using
priv_auto_alloc_size instead of platdata_auto_alloc_size.

Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
diff --git a/drivers/clk/clk-hsdk-cgu.c b/drivers/clk/clk-hsdk-cgu.c
index d9da477..64bb1db 100644
--- a/drivers/clk/clk-hsdk-cgu.c
+++ b/drivers/clk/clk-hsdk-cgu.c
@@ -716,6 +716,6 @@
 	.id = UCLASS_CLK,
 	.of_match = hsdk_cgu_clk_id,
 	.probe = hsdk_cgu_clk_probe,
-	.platdata_auto_alloc_size = sizeof(struct hsdk_cgu_clk),
+	.priv_auto_alloc_size = sizeof(struct hsdk_cgu_clk),
 	.ops = &hsdk_cgu_ops,
 };