Important: qemu security update (Oracle Linux 7)

[12:2.9.0-21.el7]
- x86: Add mds feature (Karl Heubaum)
- e1000: Never increment the RX undersize count register (Chris Kenna)
- i386: Add some MSR based features on Cascadelake-Server CPU model (Tao Xu) [Orabug: 29643540]
- i386: Update stepping of Cascadelake-Server (Tao Xu) [Orabug: 29643540]
- kvm: Use KVM_GET_MSR_INDEX_LIST for MSR_IA32_ARCH_CAPABILITIES support (Bandan Das) [Orabug: 29643540]
- x86: define a new MSR based feature word -- FEATURE_WORDS_ARCH_CAPABILITIES (Robert Hoo) [Orabug: 29643540]
- x86: Data structure changes to support MSR based features (Robert Hoo) [Orabug: 29643540]
- kvm: Add support to KVM_GET_MSR_FEATURE_INDEX_LIST and KVM_GET_MSRS system ioctl (Robert Hoo) [Orabug: 29643540]
- i386: Add CPUID bit and feature words for IA32_ARCH_CAPABILITIES MSR (Robert Hoo) [Orabug: 29643540]
- i386: Add new MSR indices for IA32_PRED_CMD and IA32_ARCH_CAPABILITIES (Robert Hoo) [Orabug: 29643540]
- update Linux headers to 4.16-rc5 (Paolo Bonzini) [Orabug: 29643540]
- linux-headers: update (Cornelia Huck) [Orabug: 29643540]
- linux-headers: update to 4.15-rc1 (Eric Auger) [Orabug: 29643540]
- linux-headers: sync against v4.14-rc1 (Alexey Perevalov) [Orabug: 29643540]
- linux header sync against v4.13-rc1 (Christian Borntraeger) [Orabug: 29643540]
- linux-headers: update to 4.13-rc0 (Christian Borntraeger) [Orabug: 29643540]
- parfait: --disable-avx2 no longer needed by rpmbuild (Liam Merwick) [Orabug: 28733157]
- parfait: deal with parfait returning non-zero return value (Liam Merwick) [Orabug: 28733157]
- parfait: use nproc to choose default number of threads (Liam Merwick) [Orabug: 28733157]
- parfait: provide option to upload results (Liam Merwick) [Orabug: 28733157]
- parfait: disable misaligned-access check (Liam Merwick) [Orabug: 28733157]
- parfait: Run static analysis when --with parfait specified (Liam Merwick) [Orabug: 28733157]
- parfait: add buildrpm/parfait-qemu.conf (Liam Merwick) [Orabug: 28733157]
- device_tree.c: Don't use load_image() (Peter Maydell) [Orabug: 29546331] {CVE-2018-20815}
- slirp: check sscanf result when emulating ident (William Bowling) [Orabug: 29501785] {CVE-2019-9824}
- i2c-ddc: fix oob read (Gerd Hoffmann) [Orabug: 29377317] {CVE-2019-3812}