Use libc from C SDK for each device #579

Job	Run time
Build SDK	1m 42s
Build SDK (nanos)	2m 13s
Build SDK (nanox)	2m 10s
Run static analysis for cargo-ledger	1m 32s
Build SDK (nanosplus)	2m 12s
Run static analysis (nanos, include_gif)	1m 29s
Build SDK (stax)	2m 12s
Run static analysis (nanos, testmacro)	1m 22s
Build SDK (flex)	2m 14s
Check code formatting	1m 13s
Run static analysis (nanos, ledger_secure_sdk_sys)	1m 52s
Run static analysis (nanos, ledger_device_sdk)	1m 57s
Run unit and integration tests (nanos)	2m 10s
Run static analysis (nanox, include_gif)	1m 25s
Run unit and integration tests (nanox)	2m 12s
Run static analysis (nanox, testmacro)	1m 20s
Run unit and integration tests (nanosplus)	2m 13s
Run static analysis (nanox, ledger_secure_sdk_sys)	1m 54s
Run unit and integration tests (stax)	2m 10s
Run static analysis (nanox, ledger_device_sdk)	1m 55s
Run unit and integration tests (flex)	2m 15s
Run static analysis (nanosplus, include_gif)	1m 32s
Run static analysis (nanosplus, testmacro)	1m 21s
Run static analysis (nanosplus, ledger_secure_sdk_sys)	1m 53s
Run static analysis (nanosplus, ledger_device_sdk)	1m 55s
Run static analysis (stax, include_gif)	1m 28s
Run static analysis (stax, testmacro)	1m 21s
Run static analysis (stax, ledger_secure_sdk_sys)	1m 54s
Run static analysis (stax, ledger_device_sdk)	1m 54s
Run static analysis (flex, include_gif)	1m 23s
Run static analysis (flex, testmacro)	1m 20s
Run static analysis (flex, ledger_secure_sdk_sys)	1m 56s
Run static analysis (flex, ledger_device_sdk)	1m 57s
	59m 36s

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