NextExpectedSMP — reflects the type of the next expected SMP TLV
These values should appear in ConnContext.smstate
.nextExpected
when the respective TLV was found using otrl_tlv_find.
OTRL_SMP_EXPECT1 OTRL_SMP_EXPECT2 OTRL_SMP_EXPECT3 OTRL_SMP_EXPECT4 OTRL_SMP_EXPECT5