In order to change into mode3, CPOL and CPHA bit of SPCMD register
of QSPI is changed. Mode3 can avoid intermediate voltage.
Signed-off-by: NHisashi Nakamura <hisashi.nakamura.ak@renesas.com>
[horms: Updated changelog and re-ordered properties]
Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>
Acked-by: NGeert Uytterhoeven <geert+renesas@glider.be>