mtd: spi-nor: fsl-quadspi: add support for ls1021a

[Yuan Yao]

This patch set is used for add the fsl-quadspi support for ls1021a and
ls1043a, so remove the patch:
mtd: spi-nor: fsl-quadspi: extend support for some special requerment.

This patch will be send with anther patch set for add QSPI support on LS2080A.

All the new property are document in anther patch set which is already
send to linux-kernel at vger.kernel.org and devicetree at vger.kernel.org.
Here is the patch name:
0001-Documentation-fsl-quadspi-Add-fsl-ls2080a-dspi-compa.patch
0002-Documentation-fsl-quadspi-Add-fsl-ls2080a-qspi-compa.patch
0003-dts-ls2080a-update-the-DTS-for-QSPI-and-DSPI-support.patch
0004-Documentation-fsl-quadspi-Add-optional-properties.patch

Any extra information you can find them on the patchwork:
https://patchwork.kernel.org/patch/8078931/
https://patchwork.kernel.org/patch/8078951/
https://patchwork.kernel.org/patch/8079091/
https://patchwork.kernel.org/patch/8078941/

Thanks.

Yuan Yao.