swscale/swscale: check SWS_PRINT_INFO flag for printing alignment warnings

This makes output consistent with a similar warning just few
lines above where this flag is checked in the same way.

Signed-off-by: softworkz <softworkz@hotmail.com>
Signed-off-by: Marton Balint <cus@passwd.hu>

libswscale/swscale.c

@@ -329,7 +329,7 @@ static int swscale(SwsContext *c, const uint8_t *src[],
     ) {
         SwsContext *const ctx = c->parent ? c->parent : c;
         int cpu_flags = av_get_cpu_flags();
-        if (HAVE_MMXEXT && (cpu_flags & AV_CPU_FLAG_SSE2) &&
+        if (flags & SWS_PRINT_INFO && HAVE_MMXEXT && (cpu_flags & AV_CPU_FLAG_SSE2) &&
             !atomic_exchange_explicit(&ctx->stride_unaligned_warned,1, memory_order_relaxed)) {
             av_log(c, AV_LOG_WARNING, "Warning: data is not aligned! This can lead to a speed loss\n");
         }