Merge remote-tracking branch 'remotes/bkoppelmann2/tags/pull-tricore-20200601' into...

Merge remote-tracking branch 'remotes/bkoppelmann2/tags/pull-tricore-20200601' into staging

Remove ctx->env ptr, add TriCore gdb stub

# gpg: Signature made Mon 01 Jun 2020 16:06:35 BST
# gpg:                using RSA key 6E636A7E83F2DD0CFA6E6E370AD2C6396B69CA14
# gpg:                issuer "kbastian@mail.uni-paderborn.de"
# gpg: Good signature from "Bastian Koppelmann <kbastian@mail.uni-paderborn.de>" [full]
# Primary key fingerprint: 6E63 6A7E 83F2 DD0C FA6E  6E37 0AD2 C639 6B69 CA14

* remotes/bkoppelmann2/tags/pull-tricore-20200601:
  target/tricore: Implement gdbstub
  target/tricore: Implement tricore_cpu_get_phys_page_debug
  target/tricore: Raise EXCP_DEBUG in gen_goto_tb() for singlestep
  target/tricore: Move translate feature check to ctx
  target/tricore: Don't save pc in generate_qemu_excp

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>