zynq.dtsi: Write frequency in decimal

TODO: Investigate whether the "xlnx,..." settings actually have any
effect at all, the driver does not appear to use them.
zynq-miami-florida.dtsi: Use new name for SPI driver

spi-zynq now uses "xlnx,zynq-spi..." instead of the ps7 name.
drivers/iio/adc/ad9361: Refine Fastlook Profile support

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
drivers/iio/adc/ad9361: Turn off DEBUG

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
drivers/iio/adc/ad9361: Fix profile handling

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>