Remote device changes for SMP certification

Use Case:
Certification test cases for SMP require various scenarios
where the remote device needs to show a specific behavior
where it fails the pairing in a certain way, and the DUT is
required to abort the pairing properly.
In abcense of a proper PTS suite to execute these test cases,
we can use another device running the same host by configuring
certain run time property.

Test Cases:
TP/SCJW/BI-02-C
TP/SCJW/BV-02-C
TP/SCPK/BI-03-C
TP/SCPK/BI-04-C
TP/SCPK/BV-02-C
TP/SCPK/BV-03-C
TP/SCJW/BI-01-C
TP/SCCT/BV-01-C
TP/SCCT/BV-02-C
TP/SCPK/BI-01-C
TP/SCPK/BI-02-C
TP/SCPK/BV-04-C
TP/SCPK/BV-01-C

Fix:
Added a property in the bt_stack.conf file. The property name
is "SmpFailureCase". The values 2 to 6(inclusive), are forcausing SMP
failures with various failure reasons.
Failure case 1 and 9 are for producing error "Confirm value failure".
Cases 7 and 8 are for generating specific errors at pair cancel.

Note:
The default use of this feature is controlled using a compile
time flag BTM_BLE_SMP_CERTIFICATION.
The BTM_BLE_SMP_CERTIFICATION = TRUE is needed only while we
wait for the PTS support for the LE Secure connections.

Bug: 27852645
Change-Id: I1f7a8ff2659d85b5978b75870c57162a34d394d0
(cherry picked from commit 0bd0c8fc88a7141691a7ca839b11cb711945ee33)