rockchip: rk3328-rock-pi-e: Update defconfig

Update defconfig for rk3328-rock-pi-e with new defaults.

Remove the xPL_DRIVERS_MISC=y option, no misc driver is used in xPL.

Add CONFIG_SPL_FIT_SIGNATURE=y to let SPL verify an auto generated hash
of FIT images. This help indicate if there is an issue loading any of
the images to DRAM or SRAM. Also add LEGACY_IMAGE_FORMAT=y to keep
support for scripts.

Remove SPL_I2C=y and SPL_PMIC_RK8XX=y, the related i2c and pmic nodes is
not included in the SPL fdt.

Add CMD_GPIO=y and CMD_REGULATOR=y to add the helpful gpio and regulator
commands.

Add ROCKCHIP_EFUSE=y and remove NET_RANDOM_ETHADDR=y, ethaddr and
eth1addr is set based on cpuid read from eFUSE.

Add SPL_DM_SEQ_ALIAS=y option to use alias sequence number in SPL.

Add DM_MDIO=y to ensure device tree props can be used by PHY driver.

Remove REGULATOR_PWM=y, the pwm-regulator compatible is not used.

Add RNG_ROCKCHIP=y and DM_RNG=y options to support the onboard random
generator.

Also add myself as a reviewer for this board.

Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
diff --git a/doc/board/rockchip/rockchip.rst b/doc/board/rockchip/rockchip.rst
index 73e1588..c8ba8ff 100644
--- a/doc/board/rockchip/rockchip.rst
+++ b/doc/board/rockchip/rockchip.rst
@@ -62,7 +62,7 @@
      - Rockchip Evb-RK3328 (evb-rk3328)
      - Firefly ROC-RK3328-CC (roc-cc-rk3328)
      - Pine64 Rock64 (rock64-rk3328)
-     - Radxa Rockpi E (rock-pi-e-rk3328)
+     - Radxa ROCK Pi E (rock-pi-e-rk3328)
 * rk3368
      - GeekBox (geekbox)
      - PX5 EVB (evb-px5)