spi: pl022: constify amba_id

amba_id are not supposed to change at runtime. All functions
working with const amba_id. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
diff --git a/drivers/spi/spi-pl022.c b/drivers/spi/spi-pl022.c
index 2f76e02..4797c57 100644
--- a/drivers/spi/spi-pl022.c
+++ b/drivers/spi/spi-pl022.c
@@ -2429,7 +2429,7 @@ static struct vendor_data vendor_lsi = {
 	.internal_cs_ctrl = true,
 };
 
-static struct amba_id pl022_ids[] = {
+static const struct amba_id pl022_ids[] = {
 	{
 		/*
 		 * ARM PL022 variant, this has a 16bit wide