Support Sercomm firmware partition split.
WFI partition must be defined after bootflag partitions in order for the
parser to properly find bootflag1 and bootflag2 partitions.
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
While "ok" is recognized in DT parsing, only "okay" is actually
mentioned as valid value. Replace it accordingly.
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>