- replaced CONFIG_MAIN_STACK_SIZE with CONFIG_ZTEST_STACKSIZE
in the config file
- split the main file into two files:
- main.c has ztest entry and runs separate functions for ztest
- mbedtls.c has the original routines
JIRA: ZEP-2449
Signed-off-by: Niranjhana N <niranjhana.n@intel.com>