mfsRomGetDirID
mfsRamGetDirID


Format:	s32 mfsRomGetDirID(MfsDirID upDirID, u8* name)
	s32 mfsRamGetDirID(MfsDirID upDirID, u8* name)
Arguments:	upDirID		Directory ID of directory to which target directory belongs
	*name		Directory name
Return value:Directory ID of directory  (a negative value is an error)
Function:	Obtains directory ID
Description:	This function obtains the directory ID of the directory that has the name specified by name and that belongs to the directory specified by upDirID.

Main errors:
	MFS_ERR_NO	Normal termination
	MFS_ERR_NOTFOUND	Specified directory not found