Merge tag 'xilinx-v2024.1' of https://github.com/Xilinx/linux-xlnx.git

This brings Linux 6.6 support. Main note on the merge is to revert to
use xilinx version of timer-cadence-ttc. This driver used to give
problems with some zynq platforms. Let's see if this is still an issue
and if so fix it __and__ upstream the fix to xilinx (so we get it in a
future merge). Other changes:

 * I2c .probe_new is now gone;
 * Small fixes in IIO_ENUM where the proper enum symbol was not being
   used (just explicit literal ir true/false booleans);
 * Completely removed usage of IIO mlock;
 * Legacy spi-engine driver using spi-controller (instead of master).
   This one can bring some bugs (we need to double check). We should
   anyways move to the new spi-engine driver in this cycle.

Signed-off-by: Nuno Sa <[email protected]>