Fix data source reporting for Skylake and Skylake Server. The encodings have changed to express support for L4 and persistent memory.
The first patch is a (independent) cleanup. The second is for the kernel and the third/fourth for perf/tools. The kernel part and perf tools will compile independently. Also available in git://git.kernel.org/pub/scm/linux/kernel/git/ak/linux-misc.git perf/skx-data-src-7 v1: Initial post v2: Merged some patches. Change encoding to use special bit for each combination instead of modifiers. v3: Switch to new generic lvlnum indication v4: Repost. No changes. v5: ported to latest tree. Retested remote HITM.
