strace: upgraded package to upstream

Upgraded dev-util/strace to version 4.7 on amd64, arm, x86

BUG=None
TEST=`emerge strace` worked
TEST=`emerge-stumpy strace` worked
TEST=`emerge-x86-alex strace` worked
TEST=`emerge-daisy strace` worked
TEST=`strace foo` worked in sdk & on target board

Change-Id: I9ad0248aece930c270f93777705ec71199790d69
Reviewed-on: https://gerrit.chromium.org/gerrit/45426
Reviewed-by: Matt Tennant <mtennant@chromium.org>
Commit-Queue: Mike Frysinger <vapier@chromium.org>
Tested-by: Mike Frysinger <vapier@chromium.org>
7 files changed