ASoC: SOF: imx: fix Kconfig punctuation

Add periods at the end of sentences in help text.
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@linux.intel.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Link: https://lore.kernel.org/r/20201112164425.25603-2-pierre-louis.bossart@linux.intel.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/sof/imx/Kconfig

@@ -17,7 +17,7 @@ config SND_SOC_SOF_IMX_OF
 	select SND_SOC_SOF_IMX8M if SND_SOC_SOF_IMX8M_SUPPORT
 	help
 	  This option is not user-selectable but automagically handled by
-	  'select' statements at a higher level
+	  'select' statements at a higher level.
 
 config SND_SOC_SOF_IMX_COMMON
 	tristate
@@ -30,7 +30,7 @@ config SND_SOC_SOF_IMX8_SUPPORT
 	depends on IMX_SCU=y || IMX_SCU=SND_SOC_SOF_IMX_OF
 	depends on IMX_DSP=y || IMX_DSP=SND_SOC_SOF_IMX_OF
 	help
-	  This adds support for Sound Open Firmware for NXP i.MX8 platforms
+	  This adds support for Sound Open Firmware for NXP i.MX8 platforms.
 	  Say Y if you have such a device.
 	  If unsure select "N".
 
@@ -40,13 +40,13 @@ config SND_SOC_SOF_IMX8
 	select SND_SOC_SOF_XTENSA
 	help
 	  This option is not user-selectable but automagically handled by
-	  'select' statements at a higher level
+	  'select' statements at a higher level.
 
 config SND_SOC_SOF_IMX8M_SUPPORT
 	bool "SOF support for i.MX8M"
 	depends on IMX_DSP=y || IMX_DSP=SND_SOC_SOF_OF
 	help
-	  This adds support for Sound Open Firmware for NXP i.MX8M platforms
+	  This adds support for Sound Open Firmware for NXP i.MX8M platforms.
 	  Say Y if you have such a device.
 	  If unsure select "N".
 
@@ -56,6 +56,6 @@ config SND_SOC_SOF_IMX8M
 	select SND_SOC_SOF_XTENSA
 	help
 	  This option is not user-selectable but automagically handled by
-	  'select' statements at a higher level
+	  'select' statements at a higher level.
 
 endif ## SND_SOC_SOF_IMX_IMX_TOPLEVEL