mx28evk: add trimffs to nand command

this is usefull when writing an UBI image which contains
and UBIFS volume (check README.nand and UBI FAQ for more details)

Signed-off-by: Eric BĂ©nard <eric@eukrea.com>
Acked-by: Otavio Salvador <otavio@ossystems.com.br>
1 file changed