[patch] Fix can't read /mascli/.../subscription.yaml error

[durera]

Due to the must-gather script re-using the DIR variable used to track the main directory of the CLI install, it results in this being variable set to /mascli/functions instead of /mascli, and everything except the must-gather itself command breaks :)

mas install
IBM Maximo Application Suite Installer
Powered by https://github.com/ibm-mas/ansible-devops/ and https://tekton.dev/

Current Limitations
1. Support for airgap installation is limited to Core with IoT, Manage, Optimizer at present


1. Set Target OpenShift Cluster
Connected to OCP cluster:
   https://console-openshift-console.xxx
Proceed with this cluster? [Y/n] y

2. Install OpenShift Pipelines Operator
sed: can't read /mascli/functions/templates/subscription.yaml: No such file or directory