LU-6142 quota: SPDX for Lustre Quota

LU-6142 quota: SPDX for Lustre Quota

Convert from verbose license text to SPDX.

Test-Parameters: trivial
Signed-off-by: Timothy Day <timday@amazon.com>
Change-Id: I7bb663ec8bf9713c02a418868fdbad6a354aa6ae
Reviewed-on: https://review.whamcloud.com/c/fs/lustre-release/+/56029
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: James Simmons <jsimmons@infradead.org>
Reviewed-by: Arshad Hussain <arshad.hussain@aeoncomputing.com>
Reviewed-by: Sergey Cheremencev <scherementsev@ddn.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>