IntelFsp2Pkg: Add PACKAGES_PATH support
IntelFsp2Pkg: Add PACKAGES_PATH support

Add PACKAGES_PATH support in GenCfgOpt.py

Cc: Maurice Ma <ffe085a909ec0c7dac9a0ba92c906627ea2355ed@intel.com>
Cc: Jiewen Yao <364a90bfebd1f362ebb7b48e4bf8ec010adef203@intel.com>
Cc: Giri P Mudusuru <25c53ebec15b492d82d7bf064153464c6e8fbfec@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Richard Thomaiyar <72ed7ca0c1d67ded0b254900bd2112efa735a144@intel.com>
Reviewed-by: Jiewen Yao <364a90bfebd1f362ebb7b48e4bf8ec010adef203@intel.com>
Reviewed-by: Giri P Mudusuru <25c53ebec15b492d82d7bf064153464c6e8fbfec@intel.com>

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