ASoC: SOF: Kconfig: Make the SOF_DEVELOPER_SUPPORT depend on SND_SOC_SOF

SND_SOC_SOF_DEVELOPER_SUPPORT contains options affecting how the built
SOF driver stack will behave, enables debug options and other features.

These options have no meaning if the SND_SOC_SOF is not even enabled.

If we have SOF client options under developer_support and debug they can
be selected to be built even without the core, but they do need symbols
from the core (the sof-client API) which can result build failure.

In Kconfig we can have
SND_SOC_SOF_TOPLEVEL=y
SND_SOC_SOF_DEBUG_IPC_FLOOD_TEST=y

for example, which will make the flood client to be built, but the SOF core
is not as SND_SOC_SOF is not selected.
Reviewed-by: Paul Olaru <paul.olaru@oss.nxp.com>
Reviewed-by: Daniel Baluta <daniel.baluta@nxp.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@intel.com>
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20211216230350.343857-1-pierre-louis.bossart@linux.intel.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/sof/Kconfig

@@ -63,7 +63,7 @@ config SND_SOC_SOF_DEBUG_PROBES
 
 config SND_SOC_SOF_DEVELOPER_SUPPORT
 	bool "SOF developer options support"
-	depends on EXPERT
+	depends on EXPERT && SND_SOC_SOF
 	help
 	  This option unlocks SOF developer options for debug/performance/
 	  code hardening.