imx27lite: Reenable MTD support on NOR flash.
The support for this was silently dropped by a configuration
split during the merge of the imx27lite board support in commit
864aa034f3a0e10ce710e8bbda171df3cab59414 (cmd_mtdparts: Move to common
handling of FLASH devices via MTD layer).
Signed-off-by: Detlev Zundel <dzu@denx.de>
Detlev Zundel