rockchip: Kconfig: move rk3368 config into its Kconfig

Each SoC have its config setting and its Kconfig, move
the specific setting to its own Kconfig file.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
diff --git a/arch/arm/mach-rockchip/Kconfig b/arch/arm/mach-rockchip/Kconfig
index 9ae8ec6..c41f143 100644
--- a/arch/arm/mach-rockchip/Kconfig
+++ b/arch/arm/mach-rockchip/Kconfig
@@ -136,19 +136,6 @@
 	  On-chip peripherals include Gigabit Ethernet, USB2 host and OTG, SDIO,
 	  I2S, UARTs, SPI, I2C and PWMs.
 
-if ROCKCHIP_RK3368
-
-config TPL_TEXT_BASE
-        default 0xff8c1000
-
-config TPL_MAX_SIZE
-        default 28672
-
-config TPL_STACK
-        default 0xff8cffff
-
-endif
-
 config ROCKCHIP_RK3399
 	bool "Support Rockchip RK3399"
 	select ARM64
diff --git a/arch/arm/mach-rockchip/rk3368/Kconfig b/arch/arm/mach-rockchip/rk3368/Kconfig
index 325572a..31ef243 100644
--- a/arch/arm/mach-rockchip/rk3368/Kconfig
+++ b/arch/arm/mach-rockchip/rk3368/Kconfig
@@ -53,4 +53,13 @@
 config SPL_LDSCRIPT
 	default "arch/arm/cpu/armv8/u-boot-spl.lds"
 
+config TPL_MAX_SIZE
+        default 28672
+
+config TPL_STACK
+        default 0xff8cffff
+
+config TPL_TEXT_BASE
+        default 0xff8c1000
+
 endif