drivers/iio/frequency/cf_axi_dds: Strip scale available if HDL > V6.0.0

new cores support none discrete steps

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
drivers/iio/adc/cf_axi_adc_core: FMCOMMS5 add support for selective chan enable

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