interconnect changes for 6.9

This pull request contains the interconnect changes for the 6.9-rc1 merge
window. The highlights are below:

Core changes:
- Constify the of_phandle_args in xlate functions.

Driver changes:
- New interconnect driver for the MSM8909 platform.
- New interconnect driver for the SM7150 platform.
- Clean-up and removal of unused resources in drivers.
- Constify some pointers to structs.

Signed-off-by: Georgi Djakov <djakov@kernel.org>
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