Add iar export support for STM32L151CC

[kivaisan]

Description

Add iar export support for STM32L151CC

Pull request type

[ ] Fix
[ ] Refactor
[ ] New target
[X] Feature
[ ] Breaking change

[0xc0170]

/morph build

[mbed-ci]

Build : SUCCESS

Build number : 1740
Build artifacts/logs : http://mbed-os.s3-website-eu-west-1.amazonaws.com/?prefix=builds/6634/

Triggering tests

/morph test
/morph uvisor-test
/morph export-build
/morph mbed2-build

[mbed-ci]

Exporter Build : FAILURE

Build number : 1374
Build artifacts/logs : http://mbed-os.s3-website-eu-west-1.amazonaws.com/?prefix=builds/exporter/6634/

[mbed-ci]

Test : FAILURE

Build number : 1543
Test logs :http://mbed-os-logs.s3-website-us-west-1.amazonaws.com/?prefix=logs/6634/1543

[cmonr]

An echo test failed.

Restarting.
/morph test

[cmonr]

Going to restart export build, but I suspect this might be an actual PR issue.

/morph export-build

[mbed-ci]

Exporter Build : SUCCESS

Build number : 1385
Build artifacts/logs : http://mbed-os.s3-website-eu-west-1.amazonaws.com/?prefix=builds/exporter/6634/

[mbed-ci]

Test : SUCCESS

Build number : 1553
Test logs :http://mbed-os-logs.s3-website-us-west-1.amazonaws.com/?prefix=logs/6634/1553