fs_mgr_priv: Extend fs wait timeout to 20 seconds

In practice 5 seconds is too short to wait for a disk device node to
show up if the disk is USB; 20 seconds is a much more comfortable
window.

Change-Id: Iaf2c1f46b41a44fc1240d52d8498ca9cb639ea80
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
use ext4 instead of yaffs

This is needed to allow the emulator to use ext4 images.

Bug: https://code.google.com/p/android/issues/detail?id=38561
Change-Id: I02fde6382ad67cf7f4f3b695396841f70bb9301d
Merge "fs_mgr_priv: Extend fs wait timeout to 20 seconds"
Merge "use ext4 instead of yaffs"
Improve the crasher stack-overflow command.

Runs a lot quicker, with no intermediate noise.

Change-Id: Icd911ff305da2e0889029dc78d5c2b39f32111c5
Merge "Improve the crasher stack-overflow command."
Allow more characters in partition name links

We have several partitions with underscores in their names
which would not be properly linked in:
/dev/block/platform/msm_sdcc.1/by-name/

With this change more characters (_-.) are allowed in
partition name links. Also, any other character is
replaced with '_' so the resulting link names have the
same length as the partition name.

Change-Id: I746566c03db98b10326c755692362d2c10e528ae
Merge "Allow more characters in partition name links"
Merge branch 'master' of https://android.googlesource.com/platform/system/core