[PATCHv2 1/2] mtd: spi-nor: add an API to restore the status of SPI flash chip

From: Hou Zhiqiang Add this API to restore the status of SPI flash chip to the default such as addressing mode, whenever detach the driver from device or reboot the system. Signed-off-by: Hou Zhiqiang --- V2: - Changed the API name and added the

[PATCHv2 1/2] mtd: spi-nor: add an API to restore the status of SPI flash chip

From: Hou Zhiqiang Add this API to restore the status of SPI flash chip to the default such as addressing mode, whenever detach the driver from device or reboot the system. Signed-off-by: Hou Zhiqiang --- V2: - Changed the API name and added the comments and kernel document for it. - Export