ARM: davinci: make davinci_soc_info structures const

Make davinci_soc_info structures const as they are either passed to the
function davinci_common_init having the argument as const or their field
cpu_clks of type struct clk_lookup * is passed to the function
davinci_clk_init.

So, the fields are never modified and the structures can be const.

Done using Coccinelle.

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
[nsekhar@ti.com: minor commit message adjustment]
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
diff --git a/arch/arm/mach-davinci/dm646x.c b/arch/arm/mach-davinci/dm646x.c
index da21353..b72e04a 100644
--- a/arch/arm/mach-davinci/dm646x.c
+++ b/arch/arm/mach-davinci/dm646x.c
@@ -882,7 +882,7 @@ struct platform_device dm646x_serial_device[] = {
 	}
 };
 
-static struct davinci_soc_info davinci_soc_info_dm646x = {
+static const struct davinci_soc_info davinci_soc_info_dm646x = {
 	.io_desc		= dm646x_io_desc,
 	.io_desc_num		= ARRAY_SIZE(dm646x_io_desc),
 	.jtag_id_reg		= 0x01c40028,