mtd: orion_nand: use burst reads with double word accesses
mtd: orion_nand: use burst reads with double word accesses

This is not 8 times faster than byte access, but still around 60% faster.

Signed-off-by: Nicolas Pitre <d659c10e27d52b00987b65e85d99bce5480adcae@marvell.com>
Signed-off-by: David Woodhouse <b460d66aaf00c296a3db1c1d9eeafc081d5f7d70@intel.com>

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