update sdl2 makefile

makefile.sdl2

@@ -80,7 +80,7 @@ ifdef INCLUDE_7Z_SUPPORT
 depobj	+=	un7z.o \
 			\
 			7zArcIn.o 7zBuf.o 7zBuf2.o 7zCrc.o 7zCrcOpt.o 7zDec.o 7zFile.o 7zStream.o Alloc.o Bcj2.o Bra.o Bra86.o BraIA64.o CpuArch.o \
-			Delta.o LzmaDec.o Lzma2Dec.o Ppmd7.o Ppmd7Dec.o Sha256.o Xz.o XzCrc64.o XzCrc64Opt.o XzDec.o
+			Delta.o LzFindOpt.o LzmaDec.o Lzma2Dec.o MtDec.o Ppmd7.o Ppmd7Dec.o Ppmd7aDec.o Sha256.o Sha1Opt.o Sha256Opt.o SwapBytes.o Threads.o Xxh64.o Xz.o XzCrc64.o XzCrc64Opt.o XzDec.o ZstdDec.o
 endif
 
 autobj += $(depobj)