[PSP] History/Recent playlist doesn't work.

This bug has similarites with https://github.com/libretro/RetroArch/issues/12101

PSP build behavior:
RetroArch-PSP creates retroarch-salamander.cfg at first run, that contains fixed core path, that cannot be changed.
Usually this is first of your cores by alphabet. Let's take fmsx for example:
libretro_path = "ms0:/PSP/GAME/RETROARCH/CORES/fmsx_libretro.PBP"
If you're delete retroarch-salamander.cfg - it will be created again on the next run.

Bug description:
If you're use "load core", then "load content", then select different ROMs manually - there are no bugs.
But if you want to use recent/history funcition - this is completely broken.
All your last played ROMs (nes, gen, gba, etc...) will be force opened by that fixed core, written in the retroarch-salamander.cfg
For this example this is fmsx_libretro.PBP.

So, all of your games (except MSX) will be hang.

Reproduce the PSP flow using retroarch-salamander.cfg, first loading a core and then opening different ROMs through the recent/history list. Trace how the fixed core path in that configuration interacts with recent entries; done means ROMs opened from history use their appropriate cores instead of the fixed core.