Add explicit comparisons where we were implicitly checking for non-zero

* This fixes some warnings from PVS Studio, though none of these checks were
  actually wrong it's better to be explicit.

renderdoc/android/android_utils.cpp

@@ -413,7 +413,7 @@ struct LogLine
     if(idx + 64 > line.length())
       return false;
 
-    if(strncmp(&line[idx], "RDOC ", 5))
+    if(strncmp(&line[idx], "RDOC ", 5) != 0)
       return false;
 
     idx += 5;

renderdoc/android/jdwp_connection.cpp

@@ -63,7 +63,7 @@ Connection::Connection(Network::Socket *sock)
   char response[15] = {};
   reader.Read(response, handshakeLength);
 
-  if(memcmp(handshake, response, 14))
+  if(memcmp(handshake, response, 14) != 0)
   {
     RDCERR("handshake failed - received >%s< - expected >%s<", response, handshake);
     error = true;