Revert "ARM: 7765/1: perf: Record the user-mode PC in the call chain."

 * Causes battery charging to sometimes fail.

This reverts commit cd8bca6fe4862f5af7244a5f5e4b08788ccaff11.
Squashed update of kernel from 3.0.87 to 3.0.88
Squashed update of kernel from 3.0.88 to 3.0.89
Squashed update of kernel from 3.0.89 to 3.0.90
Squashed update of kernel from 3.0.90 to 3.0.91
Squashed update of kernel from 3.0.91 to 3.0.92
Squashed update of kernel from 3.0.92 to 3.0.93
Squashed update of kernel from 3.0.93 to 3.0.94
Squashed update from ADC Team