.gitignore: Add *.a into .gitigore file
-rw-r--r-- 48 .gitignore
-rw-r--r-- 957 Makefile
-rw-r--r-- 2066 Makefile.commons
-rw-r--r-- 1420 README.md
drwxr-xr-x - apps
drwxr-xr-x - common
drwxr-xr-x - docs
drwxr-xr-x - include
drwxr-xr-x - libs
-rw-r--r-- 2654 open_amp_build.sh
drwxr-xr-x - porting
drwxr-xr-x - proxy
drwxr-xr-x - remoteproc
drwxr-xr-x - rpmsg
drwxr-xr-x - virtio