Update altera build

[trabucayre]

This PR contains 2 commits:

With (at least) Quartus Prime Pro Edition 24.1 quartus_map becomes obsolete and must be replaced by quartus_syn, otherwise build fails with:

+ quartus_map --read_settings_files=on --write_settings_files=off xxx -c xxx
Internal Error: Sub-system: QSYN, File: /quartus/synth/qsyn/qsyn_cmd.cpp, Line: 869
Command quartus_map is no longer supported. Please use quartus_syn.

The first commit address this issue by updating build/altera/platform and build/altera/quartus to adds fills_args, get_argdict to allows users selecting between these two tools with --synth-tool (default behavior is to keep quartus_map for backward compatibility with previous Quartus releases).

For some peripherals a QSYS script is required, and sometime this one refers to .ip files. Currently Add IPs section (using platform.ips is hardcoded to QSYS_FILE). The second commit address this issue by using file extension to create the XXX_FILE.

[enjoy-digital]

Thanks @trabucayre.