OvmfPkg: Enable secure-boot support when SECURE_BOOT_ENABLE==TRUE

Adjust PCD settings, library mappings and driver usage
to enable secure-boot when -D SECURE_BOOT_ENABLE=TRUE
is used on the build command line.

Signed-off-by: lgrosenb
Reviewed-by: jljusten
Reviewed-by: mdkinney

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13093 6f19259b-4bc3-4df7-8a09-765794883524
6 files changed