configs: P2020RDB: enable DM_I2C and DM_RTC

This enables DM_I2C and DM_RTC in P2020RDB defconfigs

Signed-off-by: Biwen Li <biwen.li@nxp.com>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
8 files changed