linux: update to 4.9.3, remove non-lts 4.8 series
tree2bac2d4398eae8426e8d81e0bf6ee23aa4a2f2ec
-rw-r--r-- 1308 .gitignore
-rw-r--r-- 881 .travis.yml
-rw-r--r-- 17987 COPYING
-rw-r--r-- 2407 Config.in
-rw-r--r-- 1273 LICENCE
-rw-r--r-- 559 Makefile
-rw-r--r-- 5617 Makefile.adk
-rw-r--r-- 917 README
-rw-r--r-- 719 THANKS
drwxr-xr-x - adk
drwxr-xr-x - docs
drwxr-xr-x - mk
drwxr-xr-x - package
-rw-r--r-- 4705 rules.mk
drwxr-xr-x - scripts
drwxr-xr-x - target
drwxr-xr-x - tasks
drwxr-xr-x - toolchain