Add set -ex to provisioning scripts for Ubuntu-16.04

Change-Id: Icc4b58080875255d8c2efe3e5db2c05e18127606
Reviewed-by: Tony Sarajärvi <tony.sarajarvi@qt.io>

coin/provisioning/qtci-linux-Ubuntu-16.04-x86_64/001-systemsetup.sh

@@ -36,6 +36,9 @@
 # This script modifies system settings for automated use
 
 # shellcheck source=../common/try_catch.sh
+
+set -ex
+
 source "${BASH_SOURCE%/*}/../common/try_catch.sh"
 
 NTS_IP=10.212.2.216

coin/provisioning/qtci-linux-Ubuntu-16.04-x86_64/002-apt.sh

@@ -35,6 +35,8 @@
 
 # Install required packages with APT
 
+set -ex
+
 source "${BASH_SOURCE%/*}/../common/try_catch.sh"
 
 ExceptionAPTUpdate=100

coin/provisioning/qtci-linux-Ubuntu-16.04-x86_64/004-yocto.sh

@@ -35,7 +35,7 @@
 
 # This script installs the Yocto toolchain
 
-set -e
+set -ex
 
 source "${BASH_SOURCE%/*}/../common/DownloadURL.sh"
 

coin/provisioning/qtci-linux-Ubuntu-16.04-x86_64/030-fbx.sh

 #!/bin/bash
 
+set -ex
+
 BASEDIR=$(dirname "$0")
 $BASEDIR/../common/fbx_linux.sh