Fix Microlib compatibility for -t ARM

[theotherjimmy]

Description

Missing from common flags:

• -D__MICROLIB
• --library_type=microlib

This patch adds them

Pull request type

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

[cmonr]

I thought that microlib was only invoked within the ARM compiler when uARM was used.

[cmonr]

Also, is this fixing a particualr issue, or something you noticed and came across?

[0xc0170]

Also, is this fixing a particualr issue, or something you noticed and came across?

This should be a fix (dont recall particular issue reported here though). I would have assumed only linker symbol is needed but if we build static lib, also common one is needed (reference http://www.keil.com/support/man/docs/armlib/armlib_chr1358938939195.htm). The symbol is added by uvision if you enable microlib there.

[0xc0170]

/morph build

[mbed-ci]

Build : SUCCESS

Build number : 2760
Build artifacts/logs : http://mbed-os.s3-website-eu-west-1.amazonaws.com/?prefix=builds/7722/

Triggering tests

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

[mbed-ci]

Exporter Build : FAILURE

Build number : 2389
Build artifacts/logs : http://mbed-os.s3-website-eu-west-1.amazonaws.com/?prefix=builds/exporter/7722/

[mbed-ci]

Test : FAILURE

Build number : 2486
Test logs :http://mbed-os-logs.s3-website-us-west-1.amazonaws.com/?prefix=logs/7722/2486

[cmonr]

Single failure appears to possibly be due to multiplicly defined asm symbols bug that crops up every once in a while.
/morph export-build

And DNS test has been on and off this week.
/morph test

[cmonr]

/morph test

[mbed-ci]

Exporter Build : SUCCESS

Build number : 2397
Build artifacts/logs : http://mbed-os.s3-website-eu-west-1.amazonaws.com/?prefix=builds/exporter/7722/

[mbed-ci]

Test : FAILURE

Build number : 2495
Test logs :http://mbed-os-logs.s3-website-us-west-1.amazonaws.com/?prefix=logs/7722/2495

[0xc0170]

/morph test

[mbed-ci]

Test : SUCCESS

Build number : 2499
Test logs :http://mbed-os-logs.s3-website-us-west-1.amazonaws.com/?prefix=logs/7722/2499