SOUND: Update aml_pcm.c {Part 1/2}

Bitwise error in SNDRV_PCM_FORMAT_S24_LE format manipulation. It is 24bits right-aligned in 32bits words.
SOUND: Update aml_pcm.c {Part 2/2}

Not assuming devices < MESON6 can playback 192khz. Clocking code specific to MESON6 tends to prove they cannot.
Revert "AML: fixed, vsync is off by 2 percent"

This reverts commit 2326428a563ed271285a28a18a2cb1ddc73f3c79.