Merge branch 'upstream-merge'

Merge branch 'upstream-merge'

* upstream-merge: (88 commits)
  Add ability to force enable/disable of tools build
  Add ability to disable build of all targets
  RTC: Remove the current_tm field
  RTC: Get and set time without going through s->current_tm
  RTC: Do not fire timer periodically to catch next alarm
  RTC: Add divider reset support
  RTC: Update the RTC clock only when reading it
  vmstate: add VMSTATE_TIMER_V
  RTC: Update interrupt state when interrupts are masked/unmasked
  RTC: introduce RTC_CLOCK_RATE
  RTC: Rename rtc_timer_update
  RTC: Remove the logic to update time format when DM bit changed
  socket: don't attempt to reconnect a TCP socket in server mode
  use --libexecdir instead of ignoring it first and reinventing it later
  hw/mcf5206: Fix buffer overflow for MBAR read / write
  target-arm: Fix potential buffer overflow
  hw/wm8750: Fix potential buffer overflow
  kvm: i386: Add classic PCI device assignment
  kvm: i386: Add services required for PCI device assignment
  kvm: Introduce kvm_has_intx_set_mask
  ...

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>