ASoc: adi: Kconfig: Remove depends on for ADI reference designs

Audio ADI reference designs are also used on some ZynqMP boards, and can
also be used on Intel FPGA boards and also on some more complex FPGA
combinations (FPGA cards connected through PCIe).

This change removes the dependency on Microblaze and Zynq architectures
to allow the usage of this driver for the systems described above.
Signed-off-by: Bogdan Togorean <bogdan.togorean@analog.com>
Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Link: https://lore.kernel.org/r/20201110152213.37811-1-alexandru.ardelean@analog.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/adi/Kconfig

 # SPDX-License-Identifier: GPL-2.0-only
 config SND_SOC_ADI
 	tristate "Audio support for Analog Devices reference designs"
-	depends on MICROBLAZE || ARCH_ZYNQ || COMPILE_TEST
 	help
 	  Audio support for various reference designs by Analog Devices.