fastbootd: Check for and run startup script if script exists

[DelightReza]

Signed-off-by: MD Raza raza231198@gmail.com Change-Id: Id2eeb59ca9161a997b239e8b58619d197dcd2093

We Merge Pull Requests Submitted Here After Reviewed By Core Developers

If you are submitting any patches, Tell us a little about it.

Kindly wait for Core Developers to review.

You can join our community on Telegram

• Community Group
• Test Build & Build Help Group