Fix the bug!! Thanks @MilkeeyCat

recvfrom writes to the size argument. And it expects a pointer to an integer.
But a C styled integer so thats 4 bytes. While `db` or `equ` only are 1 byte.
Changing it to `dw` fixes that. Also ``db 128, 0, 0, 0`` would work.

But if it is only one byte it writes into the next structure which was
the server address struct. Thats why that one would get corrupted.

src/teeworlds_asmr.asm

@@ -95,7 +95,7 @@ section .data
     NEWLINE db 0x0a
 
     ; networking
-    SIZEOF_SOCKADDR equ 128 ; borderline non sense
+    SIZEOF_SOCKADDR dw 128 ; borderline non sense
     ADDR_LOCALHOST dw AF_INET ; 0x2 0x00
                 db 0x20, 0x6f ; port 8303
                 db 0x7f, 0x0, 0x0, 0x01 ; 127.0.0.1