Off-by-one error in FIFO

[StratisSofianos]

sc_util/module_xfifo/src/xfifo.c

Line 6 in c06706f

fifo[LEN_INDEX] = n+FIFO_START+1;

This can cause an overflow if the size of the buffer is [FIFO_OVERHEAD + FIFO_SIZE] as per the app_xfifo_example.

In order to prevent that, the above line should read
fifo[LEN_INDEX] = n+FIFO_START;