perf tools: Move perf build related variables under non fixdep leg

Because there's no need for them in fixdep build.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1481030331-31944-4-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/Makefile.perf

@@ -164,11 +164,6 @@ BISON   = bison
 STRIP   = strip
 AWK     = awk
 
-LIB_DIR		= $(srctree)/tools/lib/api/
-TRACE_EVENT_DIR = $(srctree)/tools/lib/traceevent/
-BPF_DIR		= $(srctree)/tools/lib/bpf/
-SUBCMD_DIR	= $(srctree)/tools/lib/subcmd/
-
 # include Makefile.config by default and rule out
 # non-config cases
 config := 1
@@ -210,6 +205,11 @@ sub-make: fixdep
 
 else # force_fixdep
 
+LIB_DIR         = $(srctree)/tools/lib/api/
+TRACE_EVENT_DIR = $(srctree)/tools/lib/traceevent/
+BPF_DIR         = $(srctree)/tools/lib/bpf/
+SUBCMD_DIR      = $(srctree)/tools/lib/subcmd/
+
 # Set FEATURE_TESTS to 'all' so all possible feature checkers are executed.
 # Without this setting the output feature dump file misses some features, for
 # example, liberty. Select all checkers so we won't get an incomplete feature