drivers/iio/frequency/ad9523: Misc changes

1) Add support for PLL2 only modes
2) In case powerdown, reset and sync gpios are provided
   - request and set defaults
3) Initially Sync dividers
4) SPI SDO active also use spi3wire pdata flag.
5) Avoid surplus devm_kzalloc.

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
drivers/iio/adc/ad9361: Use proper define - and disable 2nd channels

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Merge branch 'xcomm_zynq_new_pcore_regmap' of https://github.com/analogdevicesinc/linux into xcomm_zynq_new_pcore_regmap