allow to set tool extensions specified by vendor

Change-Id: Ibbdbd539fa23054ac7f4311afa93cc9e18c845b5

Conflicts:
	core/Makefile

Conflicts:
	core/Makefile

Conflicts:
	core/Makefile
Too much added.
Fix as we are Bliss.
Merge remote-tracking branch 'upstream/kk4.4' into kk4.4