ASoC: pxa: remove Compulab pxa2xx boards

As these boards have been removed from the pxa tree, amend accordingly
the sound subsystem.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Acked-by: Mike Rapoport <rppt@kernel.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20200521185140.27276-3-robert.jarzmik@free.fr
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/pxa/Kconfig

@@ -128,9 +128,8 @@ config SND_PXA2XX_SOC_E800
 	  Toshiba e800 PDA
 
 config SND_PXA2XX_SOC_EM_X270
-	tristate "SoC Audio support for CompuLab EM-x270, eXeda and CM-X300"
+	tristate "SoC Audio support for CompuLab CM-X300"
-	depends on SND_PXA2XX_SOC && (MACH_EM_X270 || MACH_EXEDA || \
+	depends on SND_PXA2XX_SOC && MACH_CM_X300
-			MACH_CM_X300)
 	depends on AC97_BUS=n
 	select REGMAP
 	select AC97_BUS_NEW