One of big change is that QEMU has switched to Meson build system.
That result in few changes to build scripts to fix python interpreter
usage.
Second change that it's not possible to select binaries to build, so
now we have to build all targets at once (that require --enable-tools).

Options --disable-sheepdog and --disable-vxhs was removed from qemu
6.1.0 and 6.0.0 accordingly.

Signed-off-by: Vladimir Ermakov <vooon341@gmail.com>

The crude loop I wrote to come up with this changeset:

  find -L package/feeds/packages/ -name patches | \
  sed 's/patches$/refresh/' | sort | xargs make

Signed-off-by: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com>

The slirp patch was included in this QEMU release

CXX_DEPENDS is now added for all host components otherwise we get
errors like the following

  Package qemu-img is missing dependencies for the following libraries:
  libuClibc++.so.0
  Package qemu-nbd is missing dependencies for the following libraries:
  libuClibc++.so.0

--disable-bluez was removed from configure args because upstream
deprecated bluetooth subsystem since qemu v3.1 and remove the code in
commit 1d4ffe8dc77c ("Remove the core bluetooth code")

Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>

Add fallback zero value definition for MAP_SYNC etc. even when building
for CONFIG_LINUX.

Fixes openwrt/packages#11067

Reported-by: Rosen Penev <rosenp@gmail.com>
Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>