build: Fix RPM build for non-x86 platforms
build: Fix RPM build for non-x86 platforms

Make the post install script for the lock-sanlock package optional
to prevent break on non-x86 platforms.

Signed-off-by: Viktor Mihajlovski <a96a137ca8976b5ff3114c85be7aeb3b6464dad7@linux.vnet.ibm.com>

andreabolognani/libvirt,rlaager/libvirt,taget/libvirt,zippy2/libvirt,elmarco/libvirt,datto/libvirt,siboulet/libvirt-openvz,iam-TJ/libvirt,datto/libvirt,jfehlig/libvirt,iam-TJ/libvirt,cbosdo/libvirt,VenkatDatta/libvirt,elmarco/libvirt,trainstack/libvirt,crobinso/libvirt,emaste/libvirt,jardasgit/libvirt,bjzhang/libvirt,zhlcindy/libvirt-1.1.4-maintain,andreabolognani/libvirt,jfehlig/libvirt,olafhering/libvirt,elmarco/libvirt,siboulet/libvirt-openvz,agx/libvirt,novel/fbsd-libvirt,eskultety/libvirt,jfehlig/libvirt,shugaoye/libvirt,trainstack/libvirt,novel/fbsd-libvirt,jardasgit/libvirt,siboulet/libvirt-openvz,emaste/libvirt,libvirt/libvirt,rlaager/libvirt,olafhering/libvirt,fabianfreyer/libvirt,shugaoye/libvirt,rlaager/libvirt,fabianfreyer/libvirt,zippy2/libvirt,iam-TJ/libvirt,jeckersb/libvirt,siboulet/libvirt-openvz,taget/libvirt,cbosdo/libvirt,iam-TJ/libvirt,andreabolognani/libvirt,emaste/libvirt,shugaoye/libvirt,trainstack/libvirt,zhlcindy/libvirt-1.1.4-maintain,fabianfreyer/libvirt,nertpinx/libvirt,VenkatDatta/libvirt,nertpinx/libvirt,jeckersb/libvirt,andreabolognani/libvirt,cbosdo/libvirt,zippy2/libvirt,bjzhang/libvirt,nertpinx/libvirt,jeckersb/libvirt,agx/libvirt,bjzhang/libvirt,jardasgit/libvirt,datto/libvirt,jeckersb/libvirt,taget/libvirt,elmarco/libvirt,siboulet/libvirt-openvz,shugaoye/libvirt,rlaager/libvirt,iam-TJ/libvirt,libvirt/libvirt,crobinso/libvirt,libvirt/libvirt,zhlcindy/libvirt-1.1.4-maintain,shugaoye/libvirt,fabianfreyer/libvirt,crobinso/libvirt,jardasgit/libvirt,olafhering/libvirt,datto/libvirt,nertpinx/libvirt,zhlcindy/libvirt-1.1.4-maintain,trainstack/libvirt,eskultety/libvirt,eskultety/libvirt,zippy2/libvirt,novel/fbsd-libvirt,taget/libvirt,novel/fbsd-libvirt,iam-TJ/libvirt,jfehlig/libvirt,VenkatDatta/libvirt,elmarco/libvirt,cbosdo/libvirt,bjzhang/libvirt,novel/fbsd-libvirt,agx/libvirt,jardasgit/libvirt,VenkatDatta/libvirt,zhlcindy/libvirt-1.1.4-maintain,VenkatDatta/libvirt,andreabolognani/libvirt,fabianfreyer/libvirt,novel/fbsd-libvirt,jeckersb/libvirt,jeckersb/libvirt,novel/fbsd-libvirt,datto/libvirt,olafhering/libvirt,rlaager/libvirt,libvirt/libvirt,trainstack/libvirt,eskultety/libvirt,trainstack/libvirt,emaste/libvirt,eskultety/libvirt,agx/libvirt,emaste/libvirt,jeckersb/libvirt,emaste/libvirt,trainstack/libvirt,agx/libvirt,novel/fbsd-libvirt,iam-TJ/libvirt,taget/libvirt,bjzhang/libvirt,emaste/libvirt,novel/fbsd-libvirt,cbosdo/libvirt,nertpinx/libvirt,crobinso/libvirt