iio: adc: add imx93 adc support
Description: NXP add imx93 adc support
Bugzilla: http://bugzilla.redhat.com/2181783
Build Info: https://brewweb.engineering.redhat.com/brew/taskinfo?taskID=51614194
Tested: Did sanity boot testing on (nxp-imx8mquad-01.edge1) system.
Signed-off-by: Steve Best sbest@redhat.com