Initialize PageMapLevel5Entry at the beginning of the function. This commit will fix a GCC 4.8.5 build failure introduced by commitb3527dedc3
. OvmfPkg build failure wtih gcc 4.8.5 still exists at latest edk2 version. The commit46f8a68916
seems not to fix the build failure completely. Cc: Dandan Bi <dandan.bi@intel.com> Signed-off-by: Shenglei Zhang <shenglei.zhang@intel.com> Reviewed-by: Liming Gao <liming.gao@intel.com> Reviewed-by: Hao A Wu <hao.a.wu@intel.com>