ASoC: tegra: Fixes for issues exposed in Linux v7.2

Jon Hunter <jonathanh@nvidia.com> says:

Commit 4b05ccb17f92 ("regcache: Sort the local copy of an unsorted
reg_defaults array") exposed an issue in the Tegra I2S and MIXER drivers
and after this commit was added, this underlying issue now causes audio
tests that exercise the I2S and MIXER drivers to fail. This series fixes
the issue in the I2S and MIXER drivers and also fixes warning observed
with the ADMAIF and MBDRC drivers that have unsorted reg_defaults.

Link: https://patch.msgid.link/20260821153734.158426-1-jonathanh@nvidia.com