ewaol-config/tools: fix container subprocess output formatting

This patch fixes logs formatting, for some processes that runs
inside a container, 'CR' character at the line ending was stripped,
resulting log cascade in the console.

Issue-Id: SCM-2587
Signed-off-by: Kamil Dziezyk <kamil.dziezyk@arm.com>
Change-Id: Idabfc2c4f06e5da77e6f9d2cf457b5e288254065