Update Check-UpdateComplianceSetting.ps1

[baardhermansen]

• Replaced the WMI calls with one call and use of a variable
• There were multiple logical errors in if statements. The if logic allowed both empty and non-empty values, effectively never reaching the else condition
• Switched to an easier method to check for empty string in if statements
• Corrected logical error in function CheckUtcCsp. It would report Passed if registry value did not exist.