The pinned Berry source emits -Wshadow diagnostics in a couple of files. NuttX CI passes -Werror, so sim:berry fails when those third-party warnings are promoted to errors.\n\nAdd -Wno-shadow to Berry-specific compiler flags in both Make and CMake paths, keeping the local source patch limited to the NuttX port changes.
Signed-off-by: Frederick Blais <fred_blais5@hotmail.com>