Fix spiffs lseek typo for seek_end (#4287)
Fix spiffs lseek typo for seek_end (#4287)


wemos/Arduino,Adam5Wu/Arduino,Adam5Wu/Arduino,hallard/Arduino,lrmoreno007/Arduino,Lan-Hekary/Arduino,wemos/Arduino,esp8266/Arduino,sticilface/Arduino,wemos/Arduino,lrmoreno007/Arduino,Lan-Hekary/Arduino,Lan-Hekary/Arduino,hallard/Arduino,sticilface/Arduino,lrmoreno007/Arduino,Lan-Hekary/Arduino,sticilface/Arduino,Adam5Wu/Arduino,esp8266/Arduino,esp8266/Arduino,sticilface/Arduino,Adam5Wu/Arduino,hallard/Arduino,lrmoreno007/Arduino,lrmoreno007/Arduino,wemos/Arduino,Lan-Hekary/Arduino,wemos/Arduino,esp8266/Arduino,hallard/Arduino,hallard/Arduino,sticilface/Arduino,Adam5Wu/Arduino,esp8266/Arduino