[WCNCR00146539] misc: add Source Insight project files into .gitignore

[Description]
Add Source Insight project files into .gitignore to avoid
unnecessary tracking actions on those files

Change-Id: I400c46715098d37869474bc56748ed5b537777b7
Feature: misc
Signed-off-by: Awk Jiang <awk.jiang@mediatek.com>
CR-Id: WCNCR00146539
1 file changed