v1-s: flash: Source from a common script

Description

v1-s: flash: Source from a common script

Screenshots

Technical details

Tests

Pipeline: https://gitlab.e.foundation/e/priv/os/build/-/pipelines/460594

• FP3 Already on t
• FP4 Already on ~u
• one - @merothh
• GS290 - @sahilsonar
• avicii - @Lacentix

Issues

e/backlog#8398 (closed)

10 commandments of code reviews

👪 ❤️ https://gitlab.e.foundation/internal/wiki/-/wikis/mobile-team/guidelines/Code-review