Tinycrypt AES128 fixed-key with variable-text test fails using unified kernel type

[zephyrbot]

Reported by ethan gao:

The test of fixed-key with variable-text in AES128 fails due mismatching when encryption

[How to repeoduce]

1. checkout Zephyr project and cd tests/crypto/test_aes
2. run "make pristine && make BOARD=quark_se_c1000_devboard KERNEL_TYPE=unified flash"
3. watch the result from serial output

NOTE: this issue is also observed in QEMU x86, and it's solved by increasing the main stack size.

[Error log]
tc_start() - Performing AES128 tests:
AES128 test_1 (NIST key schedule test):

PASS - test_1.
AES128 test_2 (NIST encryption test):

PASS - test_2.
AES128 test_3 (NIST fixed-key and variable-text):
FAIL - fatal@53. Test #88 Failed!
Expected = %02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x
Computed = %02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x

===================================================================
FAIL - test_3.
FAIL - main@2057. AES128 test #3 (NIST fixed-key and variable-text) failed.

FAIL - main.

PROJECT EXECUTION FAILED

(Imported from Jira ZEP-1144)

[zephyrbot]

by Flavio Santes:

6072e45 solves the reported issue on QEMU.
Please check on quark_se_c1000

[zephyrbot]

by ethan gao:

Verified that patch 6072e45 has fixed this issue.

[zephyrbot]

by Mark Linkmeyer:

Correcting the priority field