gpio: bt8xx: allow to build the module with COMPILE_TEST=y

Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Bartosz Golaszewski <[email protected]>

Author: Bartosz Golaszewski

drivers/gpio/Kconfig

@@ -1671,7 +1671,7 @@ config GPIO_AMD8111
 
 config GPIO_BT8XX
 	tristate "BT8XX GPIO abuser"
-	depends on VIDEO_BT848=n
+	depends on VIDEO_BT848=n || COMPILE_TEST
 	help
 	  The BT8xx frame grabber chip has 24 GPIO pins that can be abused
 	  as a cheap PCI GPIO card.