configs: rockchip: rock960: enable pmic and regulator commands

We have both PMIC and Regulator functionality so it's useful to
be able to see output and debug with the commands enabled.
Signed-off-by: NPeter Robinson <pbrobinson@gmail.com>
Reviewed-by: NKever Yang <kever.yang@rock-chips.com>
Reviewed-by: NManivannan Sadhasivam <manivannan.sadhasivam@linaro.org>

configs/rock960-rk3399_defconfig

@@ -21,6 +21,8 @@ CONFIG_SYS_PROMPT="rock960 => "
 CONFIG_CMD_BOOTZ=y
 CONFIG_CMD_GPT=y
 CONFIG_CMD_MMC=y
+CONFIG_CMD_PMIC=y
+CONFIG_CMD_REGULATOR=y
 CONFIG_CMD_USB=y
 # CONFIG_CMD_SETEXPR is not set
 CONFIG_CMD_TIME=y