ASoC: intel: SND_SOC_INTEL_KEEMBAY should depend on ARCH_KEEMBAY

The Intel Keem Bay audio module is only present on Intel Keem Bay SoCs.
Hence add a dependency on ARCH_KEEMBAY, to prevent asking the user about
this driver when configuring a kernel without Intel Keem Bay platform
support.

Fixes: c544912b ("ASoC: Intel: Add makefiles and kconfig changes for KeemBay")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20201110145001.3280479-1-geert+renesas@glider.beSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/intel/Kconfig

@@ -198,7 +198,7 @@ endif ## SND_SOC_INTEL_SST_TOPLEVEL || SND_SOC_SOF_INTEL_TOPLEVEL
 
 config SND_SOC_INTEL_KEEMBAY
 	tristate "Keembay Platforms"
-	depends on ARM64 || COMPILE_TEST
+	depends on ARCH_KEEMBAY || COMPILE_TEST
 	depends on COMMON_CLK
 	help
 	  If you have a Intel Keembay platform then enable this option