1st set of IIO fixes for the 5.15 cycle

Usual mixed back of minor bug fixes.

adi,ad7192, ad7780, ad7793
* Fix incorrect IRQ_FLAG types.  As the IRQ line is shared with the data
  line we can be sure of the polarity and edge like nature. They were
  previously either left unspecified or as level interrupts which may
  cause problems on power up.
adi,adis16475
* Fix a deadlock by calling unlocked function when lock already held. Also
  deal with making sure lock is released correctly.
adi,adis16480
* Fix assumption that all devices support sleep mode.
aspeed,adc
* Add missing platform_set_drvdata() so we can get the indio_dev in remove
  as was being assumed.
fsl,fxls8962af
* Return IRQ_HANDLED on flush rather than a positive 'error' code.
maxim,max1207
* Fix a wrong shift on 12-bit devices that will lead to incorrect scale.
* Fix wrong number of channels on max1X31 devices due to allocating them twice.
mediatek,mt6577
* Fix a failure to apply scaling to IIO_CHAN_INFO_PROCESSED
renesas,rzg2l
* Fix failure to return -EBUSY on timeout due to ignored error code.
* Add a missing clk_disable_unprepare() on error in runtime_resume.
samsung,ssp_spi
* Fix an error code to always be returned on invalid length.
* Add some range checking to ensure resilience against bad data leading
  to potential overflow.
ti,adc128s052
* Fix an error handling path that leaves regulator on if probe fails.
ti,dac5571
* Add missing return value in a switch default.
ti,opt3001
* Fix case where sensor returns 0 lux and we were previously accidentally
  returning that this was a timeout.
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