[MTD] [NOR] intel_dc21285 switch to ROM API
[MTD] [NOR] intel_dc21285 switch to ROM API

Now that the needed helpers are exported, it becomes a nice simple 
switch over. Closes #9420

Signed-off-by: Alan Cox <91e38e63b890fbb214c8914809fde03c73e7f24d@redhat.com>
Signed-off-by: David Woodhouse <b460d66aaf00c296a3db1c1d9eeafc081d5f7d70@intel.com>

TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs