libpdbg/p9chip.c: Use the standard function for iterating targets
libpdbg/p9chip.c: Use the standard function for iterating targets

Signed-off-by: Alistair Popple <e9adbcf81c8a36ccc628e09bc92d0e25e1c8e501@popple.id.au>

open-power/pdbg,open-power/pdbg,open-power/pdbg