dev-libs/libnl: upgrade from 3.2.24 to 3.4.0

This CL imports libnl 3.4.0 from upstream Gentoo and modifies the
ebuild to use KEYWORDS="*".

TEST=Tested the following:
1. `emerge-$BOARD dev-libs/libnl:0`
2. `emerge-$BOARD dev-libs/libnl:3`
3. `FEATURES=test emerge-$BOARD platform2`
4. Run network_WiFi_SimpleConnect test.

Change-Id: Iadf70417488df8f1213edeaaa25cff0d88be92db
Commit-Ready: ChromeOS CL Exonerator Bot <>
Tested-by: Ben Chan <>
Reviewed-by: Mike Frysinger <>
(cherry picked from commit 971beff949c5f78f372b73f111099401a73446a6)
Reviewed-by: Ben Chan <>
Commit-Queue: Ben Chan <>
4 files changed