This update for SDL2 fixes the following issues:

- CVE-2020-14409: Fixed Integer Overflow resulting in heap corruption in SDL_BlitCopy in video/SDL_blit_copy.c via a crafted .BMP (bsc#1181202).
- CVE-2020-14410: Fixed heap-based buffer over-read in Blit_3or4_to_3or4__inversed_rgb in video/SDL_blit_N.c via a crafted .BMP (bsc#1181201).