Update the checksum of the reuploaded wxMSW-3.0.1_vc120_Dev.7z file.

The original version was somehow corrupted.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_3_0_BRANCH@76935 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775