ARCv3: SMP: Add virtio interfaces to dtsi #189

Job	Run time
build (arc700, arc-elf, nsim_700_defconfig)	3m 22s
build (hs4x, arc-glibc, haps_hs_defconfig)	3m 48s
build (hs4x-pae40, arc-glibc, haps_hs_defconfig)	3m 30s
build (hs5x, arc32-glibc, haps_hs5x_defconfig)	3m 32s
build (hs5x-arc64-elf-build, arc64-elf, haps_hs5x_defconfig)	3m 36s
build (hs5x-hw-atomic64, arc32-glibc, haps_hs5x_defconfig)	3m 49s
build (hs6x, arc64-glibc, haps_arc64_defconfig)	5m 31s
build (hs6x-mmu48-16k, arc64-glibc, haps_arc64_defconfig)	3m 35s
build (hs6x-mmu48-64k, arc64-glibc, haps_arc64_defconfig)	3m 26s
build (hs6x-mmu52, arc64-glibc, haps_arc64_defconfig)	3m 31s
test (arc700)	23s
test (hs4x)	24s
test (hs4x-pae40)	26s
test (hs5x)	38s
test (hs5x-arc64-elf-build)	38s
test (hs5x-hw-atomic64)	41s
test (hs6x)	1m 6s
test (hs6x-mmu48-16k)	53s
test (hs6x-mmu48-64k)	47s
test (hs6x-mmu52)	49s
	44m 25s

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