qemu-kvm security update

[1.5.3-141.el7_4.4]

• kvm-multiboot-validate-multiboot-header-address-values.patch [bz#1501120]
• Resolves: bz#1501120
  (CVE-2017-14167 qemu-kvm: Qemu: i386: multiboot OOB access while loading kernel image [rhel-7.4.z])
  [1.5.3-141.el7_4.3]
• kvm-bswap.h-Remove-cpu_to_32wu.patch [bz#1501294]
• kvm-hw-use-ld_p-st_p-instead-of-ld_raw-st_raw.patch [bz#1501294]
• kvm-vga-Start-cutting-out-non-32bpp-conversion-support.patch [bz#1501294]
• kvm-vga-Remove-remainder-of-old-conversion-cruft.patch [bz#1501294]
• kvm-vga-Separate-LE-and-BE-conversion-functions.patch [bz#1501294]
• kvm-vga-Rename-vga_template.h-to-vga-helpers.h.patch [bz#1501294]
• kvm-vga-stop-passing-pointers-to-vga_draw_line-functions.patch [bz#1501294]
• kvm-vga-drop-line_offset-variable.patch [bz#1501294]
• kvm-vga-Add-mechanism-to-force-the-use-of-a-shadow-surfa.patch [bz#1501294]
• kvm-vga-handle-cirrus-vbe-mode-wraparounds.patch [bz#1501294]
• kvm-cirrus-fix-oob-access-in-mode4and5-write-functions.patch [bz#1501294]
• Resolves: bz#1501294
  (CVE-2017-15289 qemu-kvm: Qemu: cirrus: OOB access issue in mode4and5 write functions [rhel-7.4.z])