Revert "CHROMIUM: ARM: Implement udelay using ndelay"

This reverts commit 9915a21c414730ffc2a8349d8dca40db000c2dbe.
Revert "CHROMIUM: ARM: delay: Implement ndelay using UMULL"

This reverts commit 92eedc10a0f58b6ce0f1a7a82023e5c042bd6e2f.
stand-hotplug: Disable debugging