iio: trigger: stm32-timer: fix MODULE_ALIAS

modprobe can't handle spaces in aliases.

Fixes: 93fbe91b ("iio: Add STM32 timer trigger driver")
Signed-off-by: NAlyssa Ross <hi@alyssa.is>
Link: https://lore.kernel.org/r/20211125182850.2645424-1-hi@alyssa.is
Cc: <Stable@vger.kernel.org>
Signed-off-by: NJonathan Cameron <Jonathan.Cameron@huawei.com>

drivers/iio/trigger/stm32-timer-trigger.c

@@ -912,6 +912,6 @@ static struct platform_driver stm32_timer_trigger_driver = {
 };
 module_platform_driver(stm32_timer_trigger_driver);
 
-MODULE_ALIAS("platform: stm32-timer-trigger");
+MODULE_ALIAS("platform:stm32-timer-trigger");
 MODULE_DESCRIPTION("STMicroelectronics STM32 Timer Trigger driver");
 MODULE_LICENSE("GPL v2");