[COMMON] Replace tabs by 4 ws in shell scripts

[COMMON] Replace tabs by 4 ws in shell scripts

with the following command

$ find . -not -path '*/\.*' -name *.sh -exec sed -i 's/\t/    /g' {} +

then realign manually what deserves it and in particular,
unindent some EOF scripting tags so they do not trigger errors.

Issue-ID: OOM-2643
Signed-off-by: guillaume.lambert <guillaume.lambert@orange.com>
Change-Id: Ibfa463ec8083d5a39de18a54d9c1d8746710fe03