misc: altera-stapl: drop Kconfig comment

When I2C is enabled, the comment string for "Altera FPGA firmware
download module" adds no new information or value.  It is only useful
and interesting when I2C is not enabled.  In that case, have it
show that I2C is needed for that module.
Signed-off-by: NRandy Dunlap <rdunlap@infradead.org>
Cc: Igor M. Liplianin <liplianin@netup.ru>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/misc/altera-stapl/Kconfig

-comment "Altera FPGA firmware download module"
+comment "Altera FPGA firmware download module (requires I2C)"
+	depends on !I2C
 
 config ALTERA_STAPL
 	tristate "Altera FPGA firmware download module"