Revert "msm: acpuclock: Fix error path in multicore targets"

This reverts commit 2970ac72e2697942ea3095eb80d1466060e9baaa.
Revert "msm: acpuclock-8x60: Optimize CPU voltages on 1.7GHz parts"

This reverts commit 98872fe50dcd96f218fa3051f68c55200d73d52b.
Revert "msm: acpuclock-8x60: Drop "slowest" frequency table"

This reverts commit 13f26a6bd597ea94f448c201841031bdcd517f4d.