Platforms/HiKey: increase fastboot downloading speed

Since DwUsb driver is highly depended on timer, fix the PcdTimerPeriod
value.

Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>
diff --git a/Platforms/Hisilicon/HiKey/HiKey.dsc b/Platforms/Hisilicon/HiKey/HiKey.dsc
index 8a51ad7..e44ede6 100644
--- a/Platforms/Hisilicon/HiKey/HiKey.dsc
+++ b/Platforms/Hisilicon/HiKey/HiKey.dsc
@@ -287,6 +287,9 @@
   gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwSpareBase|0x30020000

   gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwSpareSize|0x00010000

 

+  # TimerPeriod

+  gEmbeddedTokenSpaceGuid.PcdTimerPeriod|1000

+

   # System Memory (1GB)

   gArmTokenSpaceGuid.PcdSystemMemoryBase|0x00000000

   gArmTokenSpaceGuid.PcdSystemMemorySize|0x3E000000