extract-utils: make image extraction follow symlinks as well

* `adb pull` always follows symlinks on device, and adb and file-based
  extraction should behave the same

Change-Id: I2396f2e5b56856f5f40c1e271dd2791706672b19
1 file changed
tree: 49fa8f05499479d8aa9c4bc5a7c16c12ca3f66c7
  1. templates/
  2. extract_utils.sh
  3. sdat2img.py
  4. sort-blobs-list.py