ram: rk3328: use common sdram driver

RK3328 has a similar controller and phy with PX30, so we can use the
common driver for it and remove the duplicate codes.

Signed-off-by: YouMin Chen <cym@rock-chips.com>
Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
diff --git a/configs/rock64-rk3328_defconfig b/configs/rock64-rk3328_defconfig
index b128635..021f982 100644
--- a/configs/rock64-rk3328_defconfig
+++ b/configs/rock64-rk3328_defconfig
@@ -47,7 +47,6 @@
 CONFIG_TPL_SYSCON=y
 CONFIG_CLK=y
 CONFIG_SPL_CLK=y
-CONFIG_TPL_CLK=y
 CONFIG_FASTBOOT_BUF_ADDR=0x800800
 CONFIG_FASTBOOT_FLASH=y
 CONFIG_FASTBOOT_FLASH_MMC_DEV=1
@@ -76,6 +75,7 @@
 CONFIG_BAUDRATE=1500000
 CONFIG_DEBUG_UART_SHIFT=2
 CONFIG_SYSRESET=y
+# CONFIG_TPL_SYSRESET is not set
 CONFIG_USB=y
 CONFIG_USB_XHCI_HCD=y
 CONFIG_USB_XHCI_DWC3=y