mtd: spi-nor-ids: add xtxtech part#

add following XTX part numbers to the list:

xt25f08: 3V QSPI, 8Mbit
xt25f16: 3V QSPI, 16Mbit
xt25f32: 3V QSPI, 32Mbit
xt25f64: 3V QSPI, 64Mbit
xt25f128: 3V QSPI, 128Mbit
xt25f256: 3V QSPI, 256Mbit
xt25q08: 1.8V QSPI, 8Mbit
xt25q16: 1.8V QSPI, 16Mbit
xt25q32: 1.8V QSPI, 32Mbit
xt25q64: 1.8V QSPI, 64Mbit
xt25q128: 1.8V QSPI, 128Mbit
xt25q256: 1.8V QSPI, 256Mbit
xt25q512: 1.8V QSPI, 512Mbit
xt25q01g: 1.8V QSPI, 1Gbit
xt25w512: wide voltage, QSPI, 512Mbit
xt25w01g: wide voltage, QSPI, 1Gbit

remove xt25f128b and add xt25f128,because xt25f128b andxt25f128f
share same jdec id,we use xt25f128 instead.

Signed-off-by: Bruce Suen <bruce_suen@163.com>
[jagan: re-edited the entire patch]
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>