Removed trailing spaces in the most relevant files

Command used for the job:
egrep -rl ' $' --include *.c --include *.h --include  *.s --include  *.inc --include  *.txt *  | xargs sed -i 's/\s\+$//g'

Credits to Grant Murphy from Stack Overflow.

tools/gbagfx/rl.c

@@ -101,7 +101,7 @@ unsigned char *RLCompress(unsigned char *src, int srcSize, int *compressedSize)
             srcPos++;
             uncompressedLength++;
         }
-        
+
         if (uncompressedLength > 0)
         {
             dest[destPos++] = uncompressedLength - 1;