qcacld-3.0: Fix the check for number of arguments in unitTestCmd
In the fix Id1838939813e6cd2d52cee8720a1f4e0ca34329b, the condition to
check the number of args for the command unitTestCmd is set to greater
than equal to, which causes border cases to fail.
Fix the condition to pass correct number of arguments.
Change-Id: I4c6297fb112b4c60a4cb87ffaf0d3999ba798cd9
CRs-Fixed: 2353745