Feature request: adding mount/pid namespace for HD+

[ccaapton]

@verygreen @Hashcode

It will be great if the HD+ kernel could include mount/pid namespace support. These features are very useful for running a chrooted linux environment on android. A separate mount namespace will prevent the pollution of mount table used by non-chrooted process. And a separate pid ns could help the atomic destruction of all processes in the chroot, by killing the pid 1 in the child pid-namespace.

The config that need to be added are:

CONFIG_NAMESPACES=y
CONFIG_PID_NS=y

Thanks a lot!