[M54 Merge] NTRegistry - added wow64 redirection support.

TESTS=chrome_elf_unittests: NtRegistryTest*
BUG=641169
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.win:win10_chromium_x64_rel_ng

Review-Url: https://codereview.chromium.org/2345913003
Cr-Commit-Position: refs/heads/master@{#422919}
(cherry picked from commit 5379f1724fc3c193828e137faba13c8d59c3f228)

Review URL: https://codereview.chromium.org/2408923002 .

Cr-Commit-Position: refs/branch-heads/2840@{#707}
Cr-Branched-From: 1ae106dbab4bddd85132d5b75c670794311f4c57-refs/heads/master@{#414607}
11 files changed