staging: pi433: fix CamelCase for afterSyncInterrupt

Fixes checkpatch warning:

  CHECK: Avoid CamelCase: <afterSyncInterrupt>
Signed-off-by: Valentin Vidic <Valentin.Vidic@CARNet.hr>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/pi433/pi433_if.c

@@ -209,7 +209,7 @@ rf69_set_rx_cfg(struct pi433_device *dev, struct pi433_rx_cfg *rx_cfg)
 			return ret;
 
 		ret = rf69_set_fifo_fill_condition(dev->spi,
-						   afterSyncInterrupt);
+						   after_sync_interrupt);
 		if (ret < 0)
 			return ret;
 	} else {

drivers/staging/pi433/rf69.c

@@ -625,7 +625,7 @@ int rf69_set_fifo_fill_condition(struct spi_device *spi, enum fifo_fill_conditio
 	switch (fifo_fill_condition) {
 	case always:
 		return rf69_set_bit(spi, REG_SYNC_CONFIG, MASK_SYNC_CONFIG_FIFO_FILL_CONDITION);
-	case afterSyncInterrupt:
+	case after_sync_interrupt:
 		return rf69_clear_bit(spi, REG_SYNC_CONFIG, MASK_SYNC_CONFIG_FIFO_FILL_CONDITION);
 	default:
 		dev_dbg(&spi->dev, "set: illegal input param");

drivers/staging/pi433/rf69_enum.h

@@ -114,7 +114,7 @@ enum flag {
 };
 
 enum fifo_fill_condition {
-	afterSyncInterrupt,
+	after_sync_interrupt,
 	always
 };