2020.04: Updating pythondata-cpu-mor1kx to 5.0.post125

Updated data to v5.0-76-g06e2e46 based on 06e2e46afbad62572c31bde88e8f2424e23ecda2 from https://github.com/openrisc/mor1kx.git.
> commit 06e2e46afbad62572c31bde88e8f2424e23ecda2
> Author: JaewonHur <[email protected]>
> Date:   Mon Dec 23 01:23:20 2019 +0900
>
>     Fix mor1kx_decode to accept valid l.fl1 (l.ff1) instructions (#110)
>
>     * Fix mor1kx_decode to only accept valid l.fl1 and l.ff1 instructions
>
>     Both l.fl1 and l.ff1 have bit 9 set in the insruction as port of their op codes,
>     mor1kx_decode does not currently properly check this
>

Updated using 0.0.post49 from https://github.com/litex-hub/litex-data-auto