OvmfPkg/Sec: Don't decompress the FV on S3 resume

OvmfPkg/Sec: Don't decompress the FV on S3 resume

Since we marked the FV at PcdOvmfPeiMemFvBase as ACPI NVS memory,
we can use it on S3 resume.

The FV at PcdOvmfDxeMemFvBase may have been overwritten by the OS,
but we do not use it's contents on S3 resume.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15296 6f19259b-4bc3-4df7-8a09-765794883524