Add missing patches for 2.7.2-cdk

[ser-pounce]

This applies almost the same patch used for the "regular" 2.7.2-psx, resulting in the following changes:

• Forces -msoft-float
• Forces -mgas
• Forces -mcpu=3000 instead of R3000 (confirmed by analyzing the psyq version output)
• MIPS ISA 1
• -Dmips -DMIPSEL
• Changes target name to SonyPSX
• Changes version string to cygnus-2.7.2-970404 SN32.3.7.0004

I suppose the output still isn't 1:1 because the target triplet should be SonyPSX but it's late, I'm tired, and I don't think that matters.

The last two commits probably never mattered but just in case the output of cc1 should now be 1:1.

Closes #12 .

By the way, gcc-2.7.2-cdk.Dockerfile still references the source zip that I'm hosting. I've no intention of deleting it, but you might want to host it here.

[mkst]

Nice one. Yeh let me host that file and then you can update the PR and then we'll get in merged 👍

[mkst]

Alright - the file is available here https://github.com/decompals/old-gcc/releases/download/0.14/b18.tar.gz

[ser-pounce]

@mkst Done!