Adding a Fix for another strange SDK issue on the Building and Running Firmware Page

[wknutson]

I ran into 2 more strange SDK issues that were fixed with the methods below. The section below should be simple to copy and paste into the Fix common code compilation (https://docs.amdc.dev/firmware/xilinx-tools/building-and-running-firmware.html#fix-common-code-compilation) section of the "Building and Running Firmware" page on docs.amdc.dev

Fix another strange SDK issue:

1. Edit... on /app_cpu1/src

2. Change directory to /app_cpu1

3. OK

Fix another strange SDK issue:

1. Edit... on /app_cpu1/src/common

2. Change directory to /app_cpu1/common

3. OK

[npetersen2]

@wknutson thanks for documenting these changes!

Can you create a PR with these changes for review? Since these look like text-only changes, try just updating the files via the GitHub interface. You'll need to make a user branch with your changes, then create a PR for review and merging.

If you are interested in building the docs locally so you can see your changes rendered, see #56