gpu: ipu-v3: ipu-dmfc: Rename ipu_dmfc_init_channel to ipu_dmfc_config_wait4eot

The function name 'ipu_dmfc_config_wait4eot' matches the implementation of
the function better than 'ipu_dmfc_init_channel', since it only touches the
wait4eot bits.

Signed-off-by: Liu Ying <gnuiyl@gmail.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>

drivers/gpu/ipu-v3/ipu-dmfc.c

@@ -350,7 +350,7 @@ out:
 }
 EXPORT_SYMBOL_GPL(ipu_dmfc_alloc_bandwidth);
 
-void ipu_dmfc_init_channel(struct dmfc_channel *dmfc, int width)
+void ipu_dmfc_config_wait4eot(struct dmfc_channel *dmfc, int width)
 {
 	struct ipu_dmfc_priv *priv = dmfc->priv;
 	u32 dmfc_gen1;
@@ -368,7 +368,7 @@ void ipu_dmfc_init_channel(struct dmfc_channel *dmfc, int width)
 
 	mutex_unlock(&priv->mutex);
 }
-EXPORT_SYMBOL_GPL(ipu_dmfc_init_channel);
+EXPORT_SYMBOL_GPL(ipu_dmfc_config_wait4eot);
 
 struct dmfc_channel *ipu_dmfc_get(struct ipu_soc *ipu, int ipu_channel)
 {