Add support for EON EN25QX128A spi nor flash with no flags as it does
support SFDP parsing.
Fixes: #9442
Tested-by: Szabolcs Hubai <szab.hu@gmail.com> [ramips/mt7621: xiaomi_mi-router-4a-gigabit]
(cherry picked from commit d7876daf65)
[ apply the same patch to 5.4 kernel ]
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
Christian Marangi