staging: most: rename DIM_ServiceChannel to dim_service_channel

This patch renames DIM_ServiceChannel to dim_service_channel to avoid
camelcase found by checkpatch.

CHECK: Avoid CamelCase: <DIM_ServiceChannel>
FILE: drivers/staging/most/hdm-dim2/dim2_hal.c:857:
Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/most/hdm-dim2/dim2_hal.c

@@ -854,7 +854,7 @@ void dim_service_irq(struct dim_channel *const *channels)
 	dimcb_io_write(&g.dim2->MS1, 0);
 }
 
-u8 DIM_ServiceChannel(struct dim_channel *ch)
+u8 dim_service_channel(struct dim_channel *ch)
 {
 	if (!g.dim_is_initialized || !ch)
 		return DIM_ERR_DRIVER_NOT_INITIALIZED;

drivers/staging/most/hdm-dim2/dim2_hal.h

@@ -93,7 +93,7 @@ u8 dim_destroy_channel(struct dim_channel *ch);
 
 void dim_service_irq(struct dim_channel *const *channels);
 
-u8 DIM_ServiceChannel(struct dim_channel *ch);
+u8 dim_service_channel(struct dim_channel *ch);
 
 struct dim_ch_state_t *DIM_GetChannelState(struct dim_channel *ch,
 		struct dim_ch_state_t *dim_ch_state_ptr);

drivers/staging/most/hdm-dim2/dim2_hdm.c

@@ -428,7 +428,7 @@ static void dim2_tasklet_fn(unsigned long data)
 			continue;
 
 		spin_lock_irqsave(&dim_lock, flags);
-		DIM_ServiceChannel(&dev->hch[ch_idx].ch);
+		dim_service_channel(&dev->hch[ch_idx].ch);
 		spin_unlock_irqrestore(&dim_lock, flags);
 
 		service_done_flag(dev, ch_idx);