Cross Reference: /external/nanopb-c/tests/backwards_compatibility

`Name`	`Date`	`Size`
Up to higher level directory
`alltypes_legacy.c`	21-Aug-2018	`6.5K`
`alltypes_legacy.h`	21-Aug-2018	`5.1K`
`decode_legacy.c`	21-Aug-2018	`8.6K`
`encode_legacy.c`	21-Aug-2018	`4.8K`
`SConscript`	21-Aug-2018	`352`