build: add logd

Original-Change-Id: I1b96d7e6dd823a83b07b312bf07792482e883789
Signed-off-by: Nick Kralevich <nnk@google.com>

* merge conflicts
* rename syslog to logd to avert confusion with bionic syslog

Signed-off-by: Mark Salyzyn <salyzyn@google.com>

Change-Id: I137fb639a80dd28d2f0042b3ae9b7d6eb5eb5bc4
DO NOT MERGE: Revert the revert now that tcpdump+64bit=ok

This enables tcpdump for 64bit builds.

This reverts commit 24f99bd4b354789d7368cdee0c924e79e0a1517d.

Change-Id: Ic1413b2f3f66cedbe756d73656c90b3177ba66c0
Merge "build: add logd"
Revert "generic_x86: toggle 64bit binder ABI"

This reverts commit e2525ade32afa72c0e4fe12fc8fab939e41782e6.

Change-Id: Ibaec151084ce4f00194a5a22c4be7531710b4a9f
Merge "Revert "generic_x86: toggle 64bit binder ABI""
Merge "DO NOT MERGE: Revert the revert now that tcpdump+64bit=ok"
Merge remote-tracking branch 'origin/master'
Select src arch for prebuilts.

Change-Id: I2d08f923d28d59cfef93ff0bd9893352baaee60b
Merge "Select src arch for prebuilts."
Make gdbclient smarter for gdb[server] setup.

It can detect and support 3 different scenarios:

- 32-bit exe / 32-bit OS
- 64-bit exe / 64-bit OS
- 32-bit exe / 64-bit OS

Change-Id: I799a91277a5e2331aebf4b2f031e9a79f7ab5bb0
Merge "Make gdbclient smarter for gdb[server] setup."
Merge remote-tracking branch 'origin/master'