uboot-imx

[INKA4x0] NG hardware: platform code update

- Cleanup compile warnings.
- Add missing '\0' in default environment.
- Increase CFG_MONITOR_LEN to 256 KiB.
- Add required CFG_USE_PPCENV.

Signed-off-by: Marian Balakowicz <m8@semihalf.com>