fix comment issue
fix comment issue

Co-authored-by: Xiaokang Qian <2e00dca0da0b63da73f19344e2978a0d6dc414f8@users.noreply.github.com>
Signed-off-by: Jerry Yu <c6cd1413a9492a82cc7fe506fb3a273f7dc9927d@arm.com>

Mbed-TLS/mbedtls,ARMmbed/mbedtls,ARMmbed/mbedtls,ARMmbed/mbedtls,Mbed-TLS/mbedtls,ARMmbed/mbedtls,Mbed-TLS/mbedtls,Mbed-TLS/mbedtls