DESC
Uml support: add PTRACE_SYSEMU_SINGLESTEP option to i386
EDESC
From: Bodo Stroesser <bstroesser@fujitsu-siemens.com>

This patch is based on
   2.6.9-vanilla +
   host-skas3-2.6.9-v7.patch +
   patch-2.6.9-skas-v7-reorganize
It implements the new ptrace option PTRACE_SYSEMU_SINGLESTEP
this new option can be used by UML to singlestep a process.
Then it will receive the common syscall interceptions plus
a singlestep trap for each non syscall instruction.

Signed-off-by: Bodo Stroesser <bstroesser@fujitsu-siemens.com>