qt5base: fix qt_open64 related compile failure

qt5base: fix qt_open64 related compile failure

Add upstream patch fixing ([1], [2]):

  .obj/qlinuxfbscreen.o: In function `QLinuxFbScreen::initialize()':
  qlinuxfbscreen.cpp:(.text+0xa6c): undefined reference to `qt_open64(char const*, int, unsigned int)'
  qlinuxfbscreen.cpp:(.text+0x1042): undefined reference to `qt_open64(char const*, int, unsigned int)'
  qlinuxfbscreen.cpp:(.text+0x10aa): undefined reference to `qt_open64(char const*, int, unsigned int)'
  qlinuxfbscreen.cpp:(.text+0x1746): undefined reference to `qt_open64(char const*, int, unsigned int)'

[1] http://autobuild.buildroot.net/results/66f55a311dcf9d54ca6148b232287973ba226999
[2] http://autobuild.buildroot.net/results/a4759e8cea09a597dbeb82f6c673ddc531d419e8

Signed-off-by: Peter Seiderer <ps.report@gmx.net>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>