[W32TIME] Change clock update interval to 4 hours (#5940)

* Create W32TIME_POLL_INTERVAL. Set it to 4 hours and use it to set SpecialPollInterval.

base/services/w32time/register.c

@@ -236,7 +236,7 @@ SetNtpClientValues(VOID)
         goto done;
     }
 
-    dwValue = 0x00093a80;
+    dwValue = W32TIME_POLL_INTERVAL;
     dwError = RegSetValueExW(hKey,
                              L"SpecialPollInterval",
                              0,

base/services/w32time/w32time.c

@@ -153,7 +153,7 @@ GetIntervalSetting(VOID)
     }
 
     if (lRet != ERROR_SUCCESS || dwData < 120)
-        return 9 * 60 * 60; // 9 hours, because Windows uses 9 hrs, 6 mins and 8 seconds by default.
+        return W32TIME_POLL_INTERVAL;
     else
         return dwData;
 }

base/services/w32time/w32time.h

@@ -16,6 +16,7 @@
 
 #define MAX_VALUE_NAME 16383
 #define NTPPORT 123
+#define W32TIME_POLL_INTERVAL (4 * 60 * 60) // 4 hours.
 
 
 /* ntpclient.c */