Upgrade uvisor to v0.31.1

[mikisch81]

Description

This update fixes [OoB-5.9]: Example fails to run on K64F + GCC.

Pull request type

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

[mikisch81]

@adbridge @ashok-rao FYI

[alzix]

LGTM

[mikisch81]

@0xc0170 Can we run CI (or is it already scheduled?)

[0xc0170]

/morph build

[mikisch81]

@0xc0170 @cmonr Looks like the morph build had no effect..

[cmonr]

Interesting. Looks like CI had some issues last night, but looks fine now.

/morph build

[cmonr]

Halting CI builds until RC3 PRs are completed. Will resume after.

[0xc0170]

/morph build

[mikisch81]

@0xc0170 Same issue like #7157 - Can't resume build (after was aborted before)

[mbed-ci]

Build : SUCCESS

Build number : 2287
Build artifacts/logs : http://mbed-os.s3-website-eu-west-1.amazonaws.com/?prefix=builds/7147/

Triggering tests

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

[cmonr]

Pausing CI until 5.9 RC3 completes CI. Will restart jobs when able.

[0xc0170]

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

[mbed-ci]

Exporter Build : SUCCESS

Build number : 1910
Build artifacts/logs : http://mbed-os.s3-website-eu-west-1.amazonaws.com/?prefix=builds/exporter/7147/

[mbed-ci]

Test : FAILURE

Build number : 2067
Test logs :http://mbed-os-logs.s3-website-us-west-1.amazonaws.com/?prefix=logs/7147/2067

[alzix]

failed on NRF51_DK - uVisor changes do not affect this platform. Probably CI issue - please retest.

[0xc0170]

/morph test

[mbed-ci]

Test : SUCCESS

Build number : 2079
Test logs :http://mbed-os-logs.s3-website-us-west-1.amazonaws.com/?prefix=logs/7147/2079

[mikisch81]

Can this PR be merged?