+ CONFIG_SYS_SPI_ST_ENABLE_WP_PIN
+ enable the W#/Vpp signal to disable writing to the status
+ register on ST MICRON flashes like the N25Q128.
+ The status register write enable/disable bit, combined with
+ the W#/VPP signal provides hardware data protection for the
+ device as follows: When the enable/disable bit is set to 1,
+ and the W#/VPP signal is driven LOW, the status register
+ nonvolatile bits become read-only and the WRITE STATUS REGISTER
+ operation will not execute. The only way to exit this
+ hardware-protected mode is to drive W#/VPP HIGH.
+