pmtu.sh in net from ubuntu_kernel_selftests failed on KVM kernel

Test failed because some module cannot be found, issue spotted on Eoan

 # selftests: net: pmtu.sh
 # TEST: ipv4: PMTU exceptions [ OK ]
 # TEST: ipv6: PMTU exceptions [ OK ]
 # TEST: IPv4 over vxlan4: PMTU exceptions [ OK ]
 # TEST: IPv6 over vxlan4: PMTU exceptions [ OK ]
 # TEST: IPv4 over vxlan6: PMTU exceptions [ OK ]
 # TEST: IPv6 over vxlan6: PMTU exceptions [ OK ]
 # TEST: IPv4 over geneve4: PMTU exceptions [ OK ]
 # TEST: IPv6 over geneve4: PMTU exceptions [ OK ]
 # TEST: IPv4 over geneve6: PMTU exceptions [ OK ]
 # TEST: IPv6 over geneve6: PMTU exceptions [ OK ]
 # modprobe: FATAL: Module fou not found in directory /lib/modules/5.3.0-1015-kvm
 # fou44 not supported
 # TEST: IPv4 over fou4: PMTU exceptions [SKIP]
 # modprobe: FATAL: Module fou not found in directory /lib/modules/5.3.0-1015-kvm
 # fou46 not supported
 # TEST: IPv6 over fou4: PMTU exceptions [SKIP]
 # modprobe: FATAL: Module fou6 not found in directory /lib/modules/5.3.0-1015-kvm
 # fou64 not supported
 # TEST: IPv4 over fou6: PMTU exceptions [SKIP]
 # modprobe: FATAL: Module fou6 not found in directory /lib/modules/5.3.0-1015-kvm
 # fou66 not supported
 # TEST: IPv6 over fou6: PMTU exceptions [SKIP]
 # modprobe: FATAL: Module fou not found in directory /lib/modules/5.3.0-1015-kvm
 # gue44 not supported
 # TEST: IPv4 over gue4: PMTU exceptions [SKIP]
 # modprobe: FATAL: Module fou not found in directory /lib/modules/5.3.0-1015-kvm
 # gue46 not supported
 # TEST: IPv6 over gue4: PMTU exceptions [SKIP]
 # modprobe: FATAL: Module fou6 not found in directory /lib/modules/5.3.0-1015-kvm
 # gue64 not supported
 # TEST: IPv4 over gue6: PMTU exceptions [SKIP]
 # modprobe: FATAL: Module fou6 not found in directory /lib/modules/5.3.0-1015-kvm
 # gue66 not supported
 # TEST: IPv6 over gue6: PMTU exceptions [SKIP]
 # vti6 not supported
 # TEST: vti6: PMTU exceptions [SKIP]
 # vti4 not supported
 # TEST: vti4: PMTU exceptions [SKIP]
 # vti4 not supported
 # TEST: vti4: default MTU assignment [SKIP]
 # vti6 not supported
 # TEST: vti6: default MTU assignment [SKIP]
 # TEST: vti4: MTU setting on link creation [SKIP]
 # vti not supported
 # TEST: vti6: MTU setting on link creation [SKIP]
 # vti6 not supported
 # TEST: vti6: MTU changes on link changes [SKIP]
 # dummy not supported
 # TEST: ipv4: cleanup of cached exceptions [ OK ]
 # TEST: ipv6: cleanup of cached exceptions [ OK ]
 # TEST: ipv4: list and flush cached exceptions [ OK ]
 # TEST: ipv6: list and flush cached exceptions [ OK ]
 not ok 16 selftests: net: pmtu.sh # exit=1