meta-webos: don't use tabs for indentation of variables

* spaces should be used to indent multiline variables

Open-webOS-DCO-1.0-Signed-off-by: Martin Jansa <martin.jansa@palm.com>
Change-Id: I9ef16b6ec33cd68e4f9794e8bf01d4dfea45008e
Reviewed-on: http://g2g.palm.com/1118
Reviewed-by: Martin Jansa <martin.jansa@palm.com>
Tested-by: Martin Jansa <martin.jansa@palm.com>
Reviewed-by: Susan Montooth <susan.montooth@palm.com>
meta-webos: replace tabs in shell tasks by 4 spaces

* this change is only aesthetic (unlike indentation in python tasks)
* yocto styleguide advises to use tabs (but the only reason to keep
  tabs is the need to update a lot of recipes). Lately this advise
  was also merged to styleguide on OE wiki.
* using 4 spaces in both types of tasks is better because it's less
  error prone when someone is not sure if e.g.
  do_generate_toolchain_file is python or shell task and also allows to
  highlight every tab used in .bb, .bbappend, .bbclass as potentionally
  bad (shouldn't be used for multiline variable indentation and cannot
  be used for python tasks).
* here is proposal to change styleguide:
  http://lists.linuxtogo.org/pipermail/openembedded-core/2012-July/026176.html

Open-webOS-DCO-1.0-Signed-off-by: Martin Jansa <martin.jansa@palm.com>
Change-Id: I33586428e1c3a79fbb61ef70af883118d1edde1e
Reviewed-on: http://g2g.palm.com/1119
Reviewed-by: Martin Jansa <martin.jansa@palm.com>
Tested-by: Martin Jansa <martin.jansa@palm.com>
Reviewed-by: Susan Montooth <susan.montooth@palm.com>