eal/windows: fix return codes of pthread shim layer

eal/windows: fix return codes of pthread shim layer

The macro definitions of the following pthread functions
return incorrect values from the inner function return code.

While pthread_barrier_init(), pthread_barrier_destroy() and
pthread_cancel() return 0 in a case of success and non-zero (errno) value
otherwise the shimming functions InitializeSynchronizationBarrier,
DeleteSynchronizationBarrier and TerminateThread return FALSE (0)
in a case of failure and TRUE(1) in a case of success.

This issue was undetected as none of the functions return codes were
checked until such check was added in
commit 34cc55cce6b1 ("eal: fix race in control thread creation")
exposing the issue by failing pthread_barrier_init()
and rte_eal_init() on Windows as a result.

The fix aligned the return value of the 3 function with the expected
pthread API return values.

Fixes: e8428a9d89f1 ("eal/windows: add some basic functions and macros")
Cc: stable@dpdk.org
Signed-off-by: Tal Shnaiderman <talshn@nvidia.com>