staging: mt7621-pci: Do not initialise statics to 0

Remove initialisation for static global variable to fix checkpatch issue.
ERROR: do not initialise statics to 0
Signed-off-by: Mamta Shukla <mamtashukla555@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/mt7621-pci/pci-mt7621.c

@@ -122,7 +122,7 @@
 #define RALINK_PCIE_CLK_EN		BIT(21)
 
 #define MEMORY_BASE 0x0
-static int pcie_link_status = 0;
+static int pcie_link_status;
 
 /**
  * struct mt7621_pcie_port - PCIe port information