ASoC: spacemit: fix incorrect error check for sspa clock

Fix a wrong IS_ERR() check in spacemit_i2s_probe() where `clk` was used
instead of `i2s->sspa_clk`.

Signed-off-by: Goko Mell <[e-mail]>
Link: https://patch.msgid.link/[e-mail]
Signed-off-by: Mark Brown <[e-mail]>

sound/soc/spacemit/k1_i2s.c

···
 		return dev_err_probe(i2s->dev, PTR_ERR(clk), "failed to enable sspa_bus clock\n");
 
 	i2s->sspa_clk = devm_clk_get_enabled(i2s->dev, "sspa");
-	if (IS_ERR(clk))
-		return dev_err_probe(i2s->dev, PTR_ERR(clk), "failed to enable sspa clock\n");
+	if (IS_ERR(i2s->sspa_clk))
+		return dev_err_probe(i2s->dev, PTR_ERR(i2s->sspa_clk),
+				     "failed to enable sspa clock\n");
 
 	i2s->base = devm_platform_get_and_ioremap_resource(pdev, 0, &res);
 	if (IS_ERR(i2s->base))