lpj: Revert Will Deacon's experimental lpj patches

Doesn't work all that well on d2 with Qcom's weird timers.
These per-cpu lpj's seem to not like our sched and causes core imbalances.

Revert "ARM: 7830/1: delay: don't bother reporting bogomips in /proc/cpuinfo"

This reverts commit 6d77de44e2946638da8723ccbcd68480e9e492a9.

Revert "ARM: cpufreq: remove loops_per_jiffy scaling when SMP"

This reverts commit ca18898d152d222f0ba8ec5af0463e02c86d9fa8.

Revert "drivers: cpufreq: make adjust_jiffies SMP-capable"

This reverts commit f90c0b542bd24a2ceeac6ae2d517f7e08dbfc77d.

Revert "delay: lpj: replace loops_per_jiffy with macro accessor for CPU 0"

This reverts commit e2cfc33a0454bc4f5f8dbea0353bc7d4789716a1.

Revert "ARM: delay: use generic per-cpu loops_per_jiffy"

This reverts commit 423a3ebfde7abeafbd212cd06020d6c12f8f581e.

Revert "delay: lpj: introduce per_cpu variable for tracking loops_per_jiffy"

This reverts commit 0d89f34aa8b37816f28990e9ba2354dd99f2cfba.