Fix KConfig warning

This patch fixes the following Kconfig warning :
"arch/arm/mach-mx25/Kconfig:18:warning: choice value used outside its
choice group

Signed-off-by: Eric Bénard <eric@eukrea.com>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
diff --git a/arch/arm/mach-mx3/Kconfig b/arch/arm/mach-mx3/Kconfig
index 03563eb..85beece 100644
--- a/arch/arm/mach-mx3/Kconfig
+++ b/arch/arm/mach-mx3/Kconfig
@@ -167,9 +167,9 @@
 choice
 	prompt "Baseboard"
 	depends on MACH_EUKREA_CPUIMX35
-	default MACH_EUKREA_MBIMXSD_BASEBOARD
+	default MACH_EUKREA_MBIMXSD35_BASEBOARD
 
-config MACH_EUKREA_MBIMXSD_BASEBOARD
+config MACH_EUKREA_MBIMXSD35_BASEBOARD
 	prompt "Eukrea MBIMXSD development board"
 	bool
 	help