enable 8M and 16M flash sizes for generic board

Author: igrr

Diff for: boards.txt

@@ -182,6 +182,20 @@ generic.menu.FlashSize.4M3M.build.spiffs_end=0x3FB000
 generic.menu.FlashSize.4M3M.build.spiffs_blocksize=8192
 generic.menu.FlashSize.4M3M.upload.maximum_size=1044464
 
+generic.menu.FlashSize.8M=8M (7M SPIFFS)
+generic.menu.FlashSize.8M.build.flash_size=8M
+generic.menu.FlashSize.8M.build.flash_ld=eagle.flash.8m.ld
+generic.menu.FlashSize.8M.build.spiffs_start=0x100000
+generic.menu.FlashSize.8M.build.spiffs_end=0x800000
+generic.menu.FlashSize.8M.build.spiffs_blocksize=8192
+
+generic.menu.FlashSize.16M=16M (15M SPIFFS)
+generic.menu.FlashSize.16M.build.flash_size=16M
+generic.menu.FlashSize.16M.build.flash_ld=eagle.flash.16m.ld
+generic.menu.FlashSize.16M.build.spiffs_start=0x100000
+generic.menu.FlashSize.16M.build.spiffs_end=0x1000000
+generic.menu.FlashSize.16M.build.spiffs_blocksize=8192
+
 generic.menu.ResetMethod.ck=ck
 generic.menu.ResetMethod.ck.upload.resetmethod=ck
 generic.menu.ResetMethod.nodemcu=nodemcu