use gamelist from config as base path for miyoogamelist file

[pogman-code]

The miyoogamelist_gen script used rompath as basepath instead of gamelist.
This was fine for most systems since rompath is usually at the root of /Roms/<system> but it is problematic with systems with unusual structures (such as SCUMMVM, see below).

        ...
	"rompath":	"../../Roms/SCUMMVM/Shortcuts_Standalone",
	"imgpath":	"../../Roms/SCUMMVM/Imgs",
	"gamelist":	"../../Roms/SCUMMVM/miyoogamelist.xml",
        ...

fixes #1816

[andremedeiros]

This is what I get when I run your updated script:

/mnt/SDCARD/Roms # /mnt/SDCARD/.tmp_update/script/miyoogamelist_gen.sh
/mnt/SDCARD/.tmp_update/script/miyoogamelist_gen.sh: line 103: can't create ../../Roms/SCUMMVM/miyoogamelist.xml: nonexistent directory
/mnt/SDCARD/.tmp_update/script/miyoogamelist_gen.sh: line 103: can't create ../../Roms/SCUMMVM/miyoogamelist.xml: nonexistent directory
/mnt/SDCARD/.tmp_update/script/miyoogamelist_gen.sh: line 103: can't create ../../Roms/SCUMMVM/miyoogamelist.xml: nonexistent directory
/mnt/SDCARD/.tmp_update/script/miyoogamelist_gen.sh: line 103: can't create ../../Roms/SCUMMVM/miyoogamelist.xml: nonexistent directory
/mnt/SDCARD/.tmp_update/script/miyoogamelist_gen.sh: line 103: can't create ../../Roms/SCUMMVM/miyoogamelist.xml: nonexistent directory
/mnt/SDCARD/.tmp_update/script/miyoogamelist_gen.sh: line 103: can't create ../../Roms/SCUMMVM/miyoogamelist.xml: nonexistent directory
/mnt/SDCARD/.tmp_update/script/miyoogamelist_gen.sh: line 103: can't create ../../Roms/SCUMMVM/miyoogamelist.xml: nonexistent directory
/mnt/SDCARD/.tmp_update/script/miyoogamelist_gen.sh: line 103: can't create ../../Roms/SCUMMVM/miyoogamelist.xml: nonexistent directory
/mnt/SDCARD/.tmp_update/script/miyoogamelist_gen.sh: line 103: can't create ../../Roms/SCUMMVM/miyoogamelist.xml: nonexistent directory
/mnt/SDCARD/.tmp_update/script/miyoogamelist_gen.sh: line 103: can't create ../../Roms/SCUMMVM/miyoogamelist.xml: nonexistent directory
/mnt/SDCARD/.tmp_update/script/miyoogamelist_gen.sh: line 103: can't create ../../Roms/SCUMMVM/miyoogamelist.xml: nonexistent directory
/mnt/SDCARD/.tmp_update/script/miyoogamelist_gen.sh: line 103: can't create ../../Roms/SCUMMVM/miyoogamelist.xml: nonexistent directory
/mnt/SDCARD/.tmp_update/script/miyoogamelist_gen.sh: line 103: can't create ../../Roms/SCUMMVM/miyoogamelist.xml: nonexistent directory
/mnt/SDCARD/.tmp_update/script/miyoogamelist_gen.sh: line 103: can't create ../../Roms/SCUMMVM/miyoogamelist.xml: nonexistent directory
/mnt/SDCARD/.tmp_update/script/miyoogamelist_gen.sh: line 103: can't create ../../Roms/SCUMMVM/miyoogamelist.xml: nonexistent directory
/mnt/SDCARD/.tmp_update/script/miyoogamelist_gen.sh: line 103: can't create ../../Roms/SCUMMVM/miyoogamelist.xml: nonexistent directory
/mnt/SDCARD/.tmp_update/script/miyoogamelist_gen.sh: cd: line 103: can't cd to /.../../App/Search/data
/mnt/SDCARD/.tmp_update/script/miyoogamelist_gen.sh: line 103: can't create /miyoogamelist.xml: Read-only file system
/mnt/SDCARD/.tmp_update/script/miyoogamelist_gen.sh: line 103: can't create /miyoogamelist.xml: Read-only file system
/mnt/SDCARD/.tmp_update/script/miyoogamelist_gen.sh: line 103: can't create /miyoogamelist.xml: Read-only file system

[pogman-code]

This is what I get when I run your updated script:

Thanks for the feedback, I pushed an update, could you test it? I don't have a lot of experience with SCUMMVM so I am not sure my tests with it matches a real use case :D

[andremedeiros]

Update: @pogman-code tested the new fix on my device and it worked perfectly, so this should be good to go!