IntelFsp2WrapperPkg: Add missing License.txt.
IntelFsp2WrapperPkg: Add missing License.txt.

Add missing License.txt.

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

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