games/punchy: fix build on armv7

Disable LTO for better memory economy. Same fix as for i386.

See also: ad1d79583b285d7a320f7a8b844bc568142670e0
Approved by: portmgr (build fix blanket)
MFH: 2023Q4

(cherry picked from commit eadeaa9f44ed4388777f91038ff5b2e330a76edf)