rockchip: Use 'select' instead of defaults in Kconfig

Rockchip uses driver model for all subsystems. Specify this in the arm
Kconfig rather than as defaults in the Rockchip Kconfig. This means that
boards cannot turn these options off, which seems correct.

Signed-off-by: Simon Glass <sjg@chromium.org>

arch/arm/Kconfig

@@ -842,7 +842,17 @@ config ARCH_ROCKCHIP
 	select SPL
 	select OF_CONTROL
 	select CPU_V7
+	select BLK
 	select DM
+	select SPL_DM
+	select SYS_MALLOC_F
+	select SPL_SYS_MALLOC_SIMPLE
+	select DM_GPIO
+	select DM_I2C
+	select DM_MMC
+	select DM_SERIAL
+	select DM_SPI
+	select DM_SPI_FLASH
 
 config TARGET_THUNDERX_88XX
 	bool "Support ThunderX 88xx"

arch/arm/mach-rockchip/Kconfig

@@ -17,33 +17,6 @@ config ROCKCHIP_RK3036
 	  and video codec support. Peripherals include Gigabit Ethernet,
 	  USB2 host and OTG, SDIO, I2S, UART, SPI, I2C and PWMs.
 
-config SYS_MALLOC_F
-	default y
-
-config SPL_SYS_MALLOC_SIMPLE
-	default y
-
-config SPL_DM
-	default y
-
-config DM_SERIAL
-	default y
-
-config DM_SPI
-	default y
-
-config DM_SPI_FLASH
-	default y
-
-config DM_I2C
-	default y
-
-config DM_GPIO
-	default y
-
-config BLK
-	default y
-
 source "arch/arm/mach-rockchip/rk3288/Kconfig"
 source "arch/arm/mach-rockchip/rk3036/Kconfig"
 endif