misc: keba: Add hardware dependency

Only propose KEBA CP500 drivers on architectures where the device
exists, unless build-testing.

Signed-off-by: Jean Delvare <[e-mail]>
Cc: Gerhard Engleder <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/misc/keba/Kconfig

···
 # SPDX-License-Identifier: GPL-2.0
 config KEBA_CP500
 	tristate "KEBA CP500 system FPGA support"
+	depends on X86_64 || ARM64 || COMPILE_TEST
 	depends on PCI
 	depends on I2C
 	select AUXILIARY_BUS