[AAF] Use common secret in sms preload

[AAF] Use common secret in sms preload

Use common secret template and init container to fill config files for
job that preloads secrets to SMS.

Init container is prepared for temporary workaround required by the
OOF team to encrypt passwords before storing them in sms.

The only thing that has to be done is to instead of just assigning for
example:
export AAI_PASS=${AAI_PASS_PLAIN};

do

export AAI_PASS=`awesomeEncryptCommand ${AAI_PASS_PLAIN}`

Issue-ID: OPTFRA-720
Change-Id: I0ada7de0aa8710580ccf51cb9ab0822b81b4f46a
Signed-off-by: Krzysztof Opasiak <k.opasiak@samsung.com>