device_map: move mach: sunxi to allwinner
device_map: move mach: sunxi to allwinner

We use mach to refer to te SoC family, which, on arm32 commes from
arch/arm/<mach>.  But on ARM64, mach comes from
arch/arm64/boot/dts/<mach>.   For many SoC families, those are the same
for for some the are different (e.g. sunxi vs allwinner)

For ease of viewing in the SoC view, standardize on the arm64 name
for allwinner.

Signed-off-by: Kevin Hilman <f9849b02abe18c1ece6bd40346458ed53f49d31b@baylibre.com>

kernelci/lava-ci-staging,kernelci/lava-ci-staging,kernelci/lava-ci-staging