[Bugfix][T106][bug-view-306]Fix the issue of error when repeatedly calling the download ephemeris function

Only Configure :No
Affected branch: master
Affected module: gnss
Is it affected on both ZXIC and MTK:only ZXIC
Self-test: Yes
Doc Update: No

Change-Id: I57ac7e8de703e2eeac6567646d1ac11aaf9fbf89
3 files changed