rockchip: clock: rk3036: some fix according TRM

- hclk/pclk_div range should use '<=' instead of '<'
- use GPLL for pd_bus clock source
- pd_bus HCLK/PCLK clock rate should not bigger than ACLK

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/arch/arm/include/asm/arch-rockchip/cru_rk3036.h b/arch/arm/include/asm/arch-rockchip/cru_rk3036.h
index eb5eb40..22278e1 100644
--- a/arch/arm/include/asm/arch-rockchip/cru_rk3036.h
+++ b/arch/arm/include/asm/arch-rockchip/cru_rk3036.h
@@ -16,9 +16,9 @@
 #define CORE_PERI_HZ	150000000
 #define CORE_ACLK_HZ	300000000
 
-#define CPU_ACLK_HZ	150000000
-#define CPU_HCLK_HZ	300000000
-#define CPU_PCLK_HZ	300000000
+#define BUS_ACLK_HZ	148500000
+#define BUS_HCLK_HZ	148500000
+#define BUS_PCLK_HZ	74250000
 
 #define PERI_ACLK_HZ	148500000
 #define PERI_HCLK_HZ	148500000