build: install -- Add BINDIR var
build: install -- Add BINDIR var

Will need it for uninstall action.

Signed-off-by: Cyrill Gorcunov <7a1ea01eee6961eb1e372e3508c2670446d086f4@openvz.org>
Reviewed-by: Dmitry Safonov <5aea3f9692c8a01793193334616ae8fad2bc748a@virtuozzo.com>
Signed-off-by: Pavel Emelyanov <c9a32589e048e044184536f7ac71ef92fe82df3e@virtuozzo.com>

efiop/criu,eabatalov/criu,eabatalov/criu,KKoukiou/criu-remote,KKoukiou/criu-remote,KKoukiou/criu-remote,efiop/criu,efiop/criu,KKoukiou/criu-remote,eabatalov/criu,KKoukiou/criu-remote,eabatalov/criu,eabatalov/criu,efiop/criu,eabatalov/criu,efiop/criu,KKoukiou/criu-remote,efiop/criu