Describe the QSPI FLASH on the White Hawk CPU board.
Signed-off-by: Hai Pham <hai.pham.ud@renesas.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/c3a01a8de924d6a3fcdb1ee0284544ad2ea5c8ec.1665583435.git.geert+renesas@glider.be