IntelFsp2Pkg: Correcting Data Region Length of MCUD section

[praravin]

Description

MCUD Data Region Length(DATA_LEN_OF_MCUD) pushed to stack is incorrect for 64-bit. This commit inputs the correct Data Region Length for the MCUD Section.

REF: https://bugzilla.tianocore.org/show_bug.cgi?id=4793

• [ ] Breaking change?
  • Breaking change - Will this cause a break in build or boot behavior?
  • Examples: Add a new library class or move a module to a different repo.
• [ ] Impacts security?
  • Security - Does the change have a direct security impact?
  • Examples: Crypto algorithm change or buffer overflow fix.
• [ ] Includes tests?
  • Tests - Does the change include any explicit test code?
  • Examples: Unit tests or integration tests.

How This Was Tested

N/A

Integration Instructions

N/A

[mergify[bot]]

⚠️ The sha of the head commit of this PR conflicts with #5879. Mergify cannot evaluate rules on this PR. ⚠️