Merge remote-tracking branch 'kraxel/pixman.v5' into staging

* kraxel/pixman.v5:
  pixman: cleanup properly on make distclean
  pixman: add licensing info
  pixman: build internal version early
  pixman: pass cflags, add -fPIC
  pixman: disable gtk
  pixman: set --host for cross builds
  pixman: add output dir to include path

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

diff --cc qemu-pixman.c
Simple merge

diff --cc qemu-pixman.h
Simple merge