ARM: imx: let the machines select SOC_IMX{21,27}

This prepares multi-SoC kernel support.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>

arch/arm/mach-imx/Kconfig

@@ -57,13 +57,11 @@ choice
 
 config MACH_MX21
 	bool "i.MX21 support"
-	select SOC_IMX21
 	help
 	  This enables support for Freescale's MX2 based i.MX21 processor.
 
 config MACH_MX27
 	bool "i.MX27 support"
-	select SOC_IMX27
 	help
 	  This enables support for Freescale's MX2 based i.MX27 processor.
 
@@ -77,6 +75,7 @@ comment "MX21 platforms:"
 
 config MACH_MX21ADS
 	bool "MX21ADS platform"
+	select SOC_IMX21
 	select IMX_HAVE_PLATFORM_IMX_FB
 	select IMX_HAVE_PLATFORM_IMX_UART
 	select IMX_HAVE_PLATFORM_MXC_MMC
@@ -139,6 +138,7 @@ comment "MX27 platforms:"
 
 config MACH_MX27ADS
 	bool "MX27ADS platform"
+	select SOC_IMX27
 	select IMX_HAVE_PLATFORM_IMX_FB
 	select IMX_HAVE_PLATFORM_IMX_I2C
 	select IMX_HAVE_PLATFORM_IMX_UART
@@ -151,6 +151,7 @@ config MACH_MX27ADS
 
 config MACH_PCM038
 	bool "Phytec phyCORE-i.MX27 CPU module (pcm038)"
+	select SOC_IMX27
 	select IMX_HAVE_PLATFORM_IMX2_WDT
 	select IMX_HAVE_PLATFORM_IMX_I2C
 	select IMX_HAVE_PLATFORM_IMX_UART
@@ -180,6 +181,7 @@ endchoice
 
 config MACH_CPUIMX27
 	bool "Eukrea CPUIMX27 module"
+	select SOC_IMX27
 	select IMX_HAVE_PLATFORM_FSL_USB2_UDC
 	select IMX_HAVE_PLATFORM_IMX2_WDT
 	select IMX_HAVE_PLATFORM_IMX_I2C
@@ -228,6 +230,7 @@ endchoice
 
 config MACH_MX27_3DS
 	bool "MX27PDK platform"
+	select SOC_IMX27
 	select IMX_HAVE_PLATFORM_IMX_KEYPAD
 	select IMX_HAVE_PLATFORM_IMX_UART
 	select IMX_HAVE_PLATFORM_MXC_MMC
@@ -237,6 +240,7 @@ config MACH_MX27_3DS
 
 config MACH_IMX27_VISSTRIM_M10
 	bool "Vista Silicon i.MX27 Visstrim_m10"
+	select SOC_IMX27
 	select IMX_HAVE_PLATFORM_IMX_I2C
 	select IMX_HAVE_PLATFORM_IMX_UART
 	select IMX_HAVE_PLATFORM_MXC_MMC
@@ -248,6 +252,7 @@ config MACH_IMX27_VISSTRIM_M10
 
 config MACH_IMX27LITE
 	bool "LogicPD MX27 LITEKIT platform"
+	select SOC_IMX27
 	select IMX_HAVE_PLATFORM_IMX_UART
 	help
 	  Include support for MX27 LITEKIT platform. This includes specific
@@ -255,6 +260,7 @@ config MACH_IMX27LITE
 
 config MACH_PCA100
 	bool "Phytec phyCARD-s (pca100)"
+	select SOC_IMX27
 	select IMX_HAVE_PLATFORM_FSL_USB2_UDC
 	select IMX_HAVE_PLATFORM_IMX2_WDT
 	select IMX_HAVE_PLATFORM_IMX_FB
@@ -273,6 +279,7 @@ config MACH_PCA100
 
 config MACH_MXT_TD60
 	bool "Maxtrack i-MXT TD60"
+	select SOC_IMX27
 	select IMX_HAVE_PLATFORM_IMX_FB
 	select IMX_HAVE_PLATFORM_IMX_I2C
 	select IMX_HAVE_PLATFORM_IMX_UART