Merge tag 'imx-fixes-4.20-3' into imx7d/pico

i.MX fixes for 4.20, round 3:
 - A couple of fixes on imx7d-pico and imx7d-nitrogen7 boards to correct
   the description of the Wifi clock.
 - Change SW2ISO count to get a safer ARM LDO ramp-up time, so that
   different boards can be covered. This fixes the ARM LDO failure seen
   on some customer boards.

diff --cc arch/arm/boot/dts/imx51-zii-rdu1.dts
Simple merge

diff --cc arch/arm/boot/dts/imx6sll.dtsi
Simple merge

diff --cc arch/arm/boot/dts/imx6sx-sdb.dtsi
Simple merge

diff --cc arch/arm/boot/dts/imx7d-nitrogen7.dts
Simple merge

diff --cc arch/arm/boot/dts/imx7d-pico.dtsi
Simple merge

diff --cc arch/arm/boot/dts/vf610m4-colibri.dts
Simple merge