configs: OrangePi PC2: Update defaults

OrangePi PC2 board has DRAM with ODT, so enable it.
H5 SoC is also connected to voltage regulator. It's default value is
reasonable at reset, but might be too low when rebooting with a lower
voltage programmed. In order to avoid instability, enable driver for it
and set it to appropriate voltage.

Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Tested-by: Andre Przywara <andre.przywara@arm.com>
[Andre: remove original ZQ value change, adjust commit message]
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
diff --git a/configs/orangepi_pc2_defconfig b/configs/orangepi_pc2_defconfig
index 5a538e1..528e5f3 100644
--- a/configs/orangepi_pc2_defconfig
+++ b/configs/orangepi_pc2_defconfig
@@ -5,11 +5,13 @@
 CONFIG_MACH_SUN50I_H5=y
 CONFIG_DRAM_CLK=672
 CONFIG_DRAM_ZQ=3881977
-# CONFIG_DRAM_ODT_EN is not set
 CONFIG_MACPWR="PD6"
 CONFIG_SPL_SPI_SUNXI=y
 # CONFIG_SYS_MALLOC_CLEAR_ON_INIT is not set
+CONFIG_SPL_I2C_SUPPORT=y
 CONFIG_SUN8I_EMAC=y
+CONFIG_SY8106A_POWER=y
+CONFIG_SY8106A_VOUT1_VOLT=1100
 CONFIG_USB_EHCI_HCD=y
 CONFIG_USB_OHCI_HCD=y
 CONFIG_USB_MUSB_GADGET=y