init.rc: mount pstore fs, set console-ramoops permissions

Change-Id: I44cb00f9123c6044a03de926b6a616da753bb549
Remove obsolete vdc call.

Since ca8e66a8b0f843812014a28d49208f9f6f64ecbc, init has
been handling reboots and filesystem unmounts. Remove obsolete
call to vdc.

Bug: 12504045
Change-Id: If8704ca042cb3a68857743b9973e48c52e7eb881
(cherry picked from commit 225459a5da21e9397ca49b0d9af7d5fe3462706b)
don't load property_contexts from /data

Bug: 12613118
Change-Id: I5a84b13d2151075d5136e3682431fbcc9307df13
(cherry picked from commit dc3a42bb11dc2aefee37f799b5a1cce87cf35aaf)
init.rc: prep tcp_default_init_rwnd, set the default to 60

The kernel's default is between 4~20.

Prepare for javaland to modify the value at runtime.

It can be done via
  setprop sys.sysctl.tcp_def_init_rwnd  <value>


Bug: 12020135
Change-Id: Id34194b085206fd02e316401c0fbbb9eb52522d2
(cherry picked from commit 7c862c8b5e59cbe216a5bc092c01f1ecba8e9de4)