swap is too big for USB upload with `pddb` and `modals`

[samchin]

Summary

When I include pddb and modals into bao_swap_pkgs, it makes swap much bigger (775KB vs 1630KB).

This means that it cannot be uploaded via USB (which is not compatible with my board).

No modals and pddb:

===== ANALYZING at Mon Jun  9 18:13:49 +08 2025 =====
swap.img                                                                                                 100%  775KB   8.6MB/s   00:00
loader.bin                                                                                               100%  351KB   7.1MB/s   00:00
ca542f18778985409645490200422e9a  target/riscv32imac-unknown-xous-elf/release/loader.bin
xous.img                                                                                                 100%  720KB   8.6MB/s   00:00
0b6a5eb0b8392f6e4bc818000e3630cc  target/riscv32imac-unknown-xous-elf/release/xous.img
54beffa430f9fed7dbb24821bb7f5fcb  target/riscv32imac-unknown-xous-elf/release/swap.img

With modals and pddb:

===== ANALYZING at Mon Jun  9 18:51:29 +08 2025 =====
swap.img                                                                                                100% 1630KB   9.1MB/s   00:00
loader.bin                                                                                              100%  351KB   6.7MB/s   00:00
c09dc1f41706d262de1b0d67bccb6278  target/riscv32imac-unknown-xous-elf/release/loader.bin
xous.img                                                                                                100%  720KB   4.0MB/s   00:00
d88eb71ca1a559ea42d15762c839021e  target/riscv32imac-unknown-xous-elf/release/xous.img
d68fa871eea8aae1c57eeed4471f1b71  target/riscv32imac-unknown-xous-elf/release/swap.img