Pedigree genome data of an early-matured Geng/japonica glutinous rice mega variety Longgeng 57 oleh Yuanbao Lei, Yunjiang Zhang, Linyun Xu, Wendong Ma, Ziqi Zhou, Jie Li, Pengyu Quan, Muhiuddin Faruquee, Dechen Yang, Fan Zhang, Yongli Zhou, Guangjun Quan, Xiuqin Zhao, Wensheng Wang, Bailong Liu, Zhikang Li, Jianlong Xu, Tianqing Zheng