[RESEND PATCH 2/6] spi: fsl_qspi: Build driver only if DM_SPI is available

[sbabic at denx.de]

> From: Frieder Schrempf <frieder.schrempf at kontron.de>
> The driver depends on DM_SPI and if it's not available (e. g. in SPL),
> then we should not try to build it as this will fail.
> Signed-off-by: Frieder Schrempf <frieder.schrempf at kontron.de>
Applied to u-boot-imx, master, thanks !

Best regards,
Stefano Babic

-- 
=====================================================================
DENX Software Engineering GmbH,      Managing Director: Wolfgang Denk
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: +49-8142-66989-53 Fax: +49-8142-66989-80 Email: sbabic at denx.de
=====================================================================