block: Remove "select BLK" from non-block drivers

Now that block drivers are all selecting the BLK symbol, there's no need
for other options to be select'ing BLK so that other required
functionality can be enabled. Remove these places.

Reviewed-by: Peter Robinson <pbrobinson@gmail.com>
Reviewed-by: Quentin Schulz <quentin.schulz@cherry.de>
Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/arch/arm/mach-imx/mx5/Kconfig b/arch/arm/mach-imx/mx5/Kconfig
index 4d1e07b..0dfd684 100644
--- a/arch/arm/mach-imx/mx5/Kconfig
+++ b/arch/arm/mach-imx/mx5/Kconfig
@@ -26,7 +26,7 @@
 	select DM_I2C
 	select DM_PMIC
 	select DM_SERIAL
-	select BLK
+	select DM_MMC
 	select DM_REGULATOR
 	select MMC
 	select MX53