Make cosmetic related modify

TAB to Space (Leading).

Signed-off-by: Max Liao <liaops@embedinfo.com>
Add a new build target sama5d3isi for isi camera

Signed-off-by: Max Liao <liaops@embedinfo.com>
Add support for Camera

1.Add camera HAL to the build.
2.Enable building LegacyCamera app.
3.Enable stub audio.
4.Disable the build of sama5d3 audio hal.
5.Mount directory /tmp as tmpfs on early-init.

Signed-off-by: Max Liao <liaops@embedinfo.com>
Fix the issues about video recording

1.Update media_codecs to use software codecs.
2.Update media profiles for recording qvga because the application
needs to set qvga as the default camcorder option.
3.Set resolution to QVGA because encoding speed is very poor if
video resolution is higher than CIF.

Signed-off-by: Max Liao <liaops@embedinfo.com>
release tools: update the release tools to support build target sama5d3isi

Signed-off-by: Max Liao <liaops@embedinfo.com>
Enabling Ring Tones

Signed-off-by: Max Liao <liaops@embedinfo.com>