board: freescale: p1_p2_rdb_pc: Detect both P2020 SD switch configurations

As written in comment, P2020 has two possible SD switch configurations.
Extend code to detect both of them.

Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
2 files changed