clk: imx: scu: Fix memory leak in __imx_clk_gpr_scu()

In cases where imx_clk_is_resource_owned() returns false, the code path
does not handle the failure gracefully, potentially leading to a memory
leak. This fix ensures proper cleanup by freeing the allocated memory
for 'clk_node' before returning.

Signed-off-by: Kuan-Wei Chiu <[e-mail]>
Reviewed-by: Peng Fan <[e-mail]>
Link: https://lore.kernel.org/all/[e-mail]/
Signed-off-by: Abel Vesa <[e-mail]>

drivers/clk/imx/clk-scu.c

···
 		return ERR_PTR(-EINVAL);
 	}
 
-	if (!imx_clk_is_resource_owned(rsrc_id))
+	if (!imx_clk_is_resource_owned(rsrc_id)) {
+		kfree(clk_node);
 		return NULL;
+	}
 
 	clk = kzalloc(sizeof(*clk), GFP_KERNEL);
 	if (!clk) {