hg: jdk9/hs-comp/hotspot: 8155738: C2: fix frame_complete_offset

[dean.long at oracle.com]

Changeset: 1b316f7a9893
Author:    goetz
Date:      2016-05-02 14:17 -0700
URL:       http://hg.openjdk.java.net/jdk9/hs-comp/hotspot/rev/1b316f7a9893

8155738: C2: fix frame_complete_offset
Summary: During scratch_emit_size wrong value was set. Also set offset of ppc.
Reviewed-by: kvn, dlong

! src/cpu/ppc/vm/ppc.ad
! src/share/vm/opto/compile.hpp