UBUNTU: [Config] buildinfo -- add retpoline version markers

BugLink: http://bugs.launchpad.net/bugs/1806380Signed-off-by: Andy Whitcroft <apw@canonical.com>
Acked-by: Stefan Bader <stefan.bader@canonical.com>
Acked-by: Kleber Sacilotto de Souza <kleber.souza@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>

debian.master/abi/4.4.0-142.168/amd64/generic.retpoline

+# retpoline v1.0
 arch/x86/platform/efi/efi_stub_64.S .text efi_call callq *%rdi
 arch/x86/platform/efi/efi_thunk_64.S .text efi64_thunk callq *%rbx
 arch/x86/platform/efi/efi_thunk_64.S .text efi_enter32 callq *%rdi

debian.master/abi/4.4.0-142.168/amd64/lowlatency.retpoline

+# retpoline v1.0
 arch/x86/platform/efi/efi_stub_64.S .text efi_call callq *%rdi
 arch/x86/platform/efi/efi_thunk_64.S .text efi64_thunk callq *%rbx
 arch/x86/platform/efi/efi_thunk_64.S .text efi_enter32 callq *%rdi

debian.master/abi/4.4.0-142.168/i386/generic.retpoline

+# retpoline v1.0
 arch/x86/kernel/apm_32.c .text __apm_bios_call lcall *%cs:0x0
 arch/x86/kernel/apm_32.c .text __apm_bios_call_simple lcall *%cs:0x0
 arch/x86/pci/pcbios.c .text pci_bios_read lcall *(%esi)

debian.master/abi/4.4.0-142.168/i386/lowlatency.retpoline

+# retpoline v1.0
 arch/x86/kernel/apm_32.c .text __apm_bios_call lcall *%cs:0x0
 arch/x86/kernel/apm_32.c .text __apm_bios_call_simple lcall *%cs:0x0
 arch/x86/pci/pcbios.c .text pci_bios_read lcall *(%esi)