misc: keba: Fix missing AUXILIARY_BUS dependency

The cp500 driver creates auxiliary devices. Kernel configs without
CONFIG_AUXILIARY_BUS lead to warnings like this:

cp500.c: undefined reference to `auxiliary_device_init'
cp500.c: undefined reference to `__auxiliary_device_add'

Add missing dependency to AUXILIARY_BUS to KEBA_CP500 Kconfig.

Reported-by: kernel test robot <[email protected]>
Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/
Fixes: a194467 ("misc: keba: Add basic KEBA CP500 system FPGA support")
Signed-off-by: Gerhard Engleder <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>

Author: Gerhard Engleder

drivers/misc/keba/Kconfig

@@ -2,6 +2,7 @@
 config KEBA_CP500
 	tristate "KEBA CP500 system FPGA support"
 	depends on PCI
+	select AUXILIARY_BUS
 	help
 	  This driver supports the KEBA CP500 system FPGA, which is used in
 	  KEBA CP500 devices. It registers all sub devices present on the CP500