ASoC: SOF: Kconfig: Make SND_SOC_SOF_HDA_PROBES tristate

SND_SOC_SOF_HDA_PROBES must be tristate because the code it builds
depends on code that is tristate.

If SND_SOC_SOF_HDA_PROBES is bool it leads to the following build
inconsistency:

SND_SOC_SOF_HDA_COMMON=m
  which selects SND_SOC_SOF_HDA_PROBES
    but since this is a bool SND_SOC_SOF_HDA_PROBES=y

SND_SOC_SOF_HDA_PROBES=y
  selects SND_SOC_SOF_DEBUG_PROBES=y
    so sof-client-probes.c is built into the kernel.

sof-client-probes.c calls functions in sof-client.c, but

SND_SOC_SOF=m
  sof-client.c is built into a loadable module.
Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20220407153813.1231866-1-rf@opensource.cirrus.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/sof/intel/Kconfig

@@ -260,7 +260,7 @@ config SND_SOC_SOF_HDA
 	  'select' statements at a higher level.
 
 config SND_SOC_SOF_HDA_PROBES
-	bool
+	tristate
 	select SND_SOC_SOF_DEBUG_PROBES
 	help
 	  The option enables the data probing for Intel(R) Skylake and newer