The AN0955 example project uses the mbedtls and Silicon Labs crypto
libraries to demonstrates the use of the CRYPTO module.

Use BTN0 to encrypt a set of data and BTN1 to decrypt the data.
The results of the encryption are stored to the User Data flash
and read out of the user data flash to decrypt.

Board:  Silicon Labs SLSTK3401A Starter Kit
Device: EFM32PG1B200F256
