Add check of MediaPresentSupported field in SNP mode data to support UNDI without cable detect capability.
Add check of MediaPresentSupported field in SNP mode data to support UNDI without cable detect capability.

git-svn-id: 5648d1bec6962b0a6d1d1b40eba8cf5cdb62da3d@10256 6f19259b-4bc3-4df7-8a09-765794883524

MattDevo/edk2,MattDevo/edk2,MattDevo/edk2,MattDevo/edk2,MattDevo/edk2,MattDevo/edk2,MattDevo/edk2,MattDevo/edk2