[GCC_ARM] Do not compile on windows

[pan-]

On windows, it is not possible to compile with the official version of GCC ARM 6. The compiler crash with as it cannot accepts more than 32K of characters on the command line.

@theotherjimmy

[theotherjimmy]

@pan- See ARMmbed/mbed-os#7583

[pan-]

@theotherjimmy That is partially related to my issue.
I do compile with mbed cli and I can see the response file on the command line (@<response file name>). However it seems that the content of the response file is passed as command argument to a program invoked by GCC.

It fails with the error ToolException: arm-none-eabi-gcc: error: CreateProcess: No such file or directory

If I do remove manually some includes path out of 415 includes path present in the response file so the total command line is bellow 32K then if I manually launch the same GCC command; it works.

[MarceloSalazar]

This is a known Windows path problem - ARMmbed/mbed-os#7129
Waiting for a fix in the Mbed OS tools.