Add a dependency on PC104 to limit (restrict) this driver kconfig
prompt to kernel configs that have PC104 set.

Add COMPILE_TEST as a possibility for more complete build coverage.
I tested this build config on x86_64 5 times without problems.

Fixes: 2d3359f8b9e6 ("can: tscan1: add driver for TS-CAN1 boards")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Andre B. Oliveira <anbadeol@gmail.com>
Cc: linux-can@vger.kernel.org
Cc: Marc Kleine-Budde <mkl@pengutronix.de>
Cc: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Cc: Andrew Lunn <andrew+netdev@lunn.ch>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Paolo Abeni <pabeni@redhat.com>
---
v2: add "|| COMPILE_TEST" for build coverage (Vincent)

 drivers/net/can/sja1000/Kconfig |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- linux-next-20250718.orig/drivers/net/can/sja1000/Kconfig
+++ linux-next-20250718/drivers/net/can/sja1000/Kconfig
@@ -105,7 +105,7 @@ config CAN_SJA1000_PLATFORM
 
 config CAN_TSCAN1
 	tristate "TS-CAN1 PC104 boards"
-	depends on ISA
+	depends on (ISA && PC104) || COMPILE_TEST
 	help
 	  This driver is for Technologic Systems' TSCAN-1 PC104 boards.
 	  https://www.embeddedts.com/products/TS-CAN1