gianfar: Fix the section mismatch warnings.

Building with CONFIG_DEBUG_SECTION_MISMATCH enabled, the following
WARNING is occured:

  LD      drivers/net/built-in.o
WARNING: drivers/net/built-in.o(.text+0xcd4c): Section mismatch in
reference from the function gfar_probe() to the function
.init.text:gfar_init_addr_hash_table()
The function gfar_probe() references
the function __init gfar_init_addr_hash_table().
This is often because gfar_probe lacks a __init
annotation or the annotation of gfar_init_addr_hash_table is wrong.
Signed-off-by: NXiubo Li <Li.Xiubo@freescale.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/ethernet/freescale/gianfar.c

@@ -1242,7 +1242,7 @@ static void gfar_hw_init(struct gfar_private *priv)
 		gfar_write_isrg(priv);
 }
 
-static void __init gfar_init_addr_hash_table(struct gfar_private *priv)
+static void gfar_init_addr_hash_table(struct gfar_private *priv)
 {
 	struct gfar __iomem *regs = priv->gfargrp[0].regs;