Adding a check under get_override function for vault. This checks if PSP
is enabled by the user for systems with kubernetes version 1.25 and
above, and if it is, then it will be disabled.
Test Plan:
PASS Unit Tests
PASS User override with global.psp.enable=true will be changed to
false during first/repeated application-apply
PASS User override with global.psp.enable=true will be changed to
false during application-update
PASS Vault application install
PASS Vault application update after kubernetes upgrade from version
1.24 to 1.25 or newer
PASS AIO-SX vault sanity
Story: 2011073
Task: 49799
Change-Id: Ia78e5a0c4423ff110a31d002904e82dee2316d65
Signed-off-by: Tae Park <tae.park@windriver.com>