Bug#1073254: geary: please add support for loong64

[wuruilong]

Source: geary
Version: 46.0-3
Followup-For: Bug #1073254
X-Debbugs-Cc: wuruilong at loongson.cn

Dear Maintainer,

I think the reason for the compilation error failure after merging the attached patches was due to mesa, the problem was solved after mesa upgraded its version. Now geary can be compiled successfully on loongarch, please close the bug.

wuruilong