[Blackfin] arch: Adjust the u-boot and kernel image partition size in mtd device.

Signed-off-by: Grace Pan <grace.pan@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>

diff --git a/arch/blackfin/mach-bf527/boards/ezkit.c b/arch/blackfin/mach-bf527/boards/ezkit.c
index 1452391..be20f79 100644
--- a/arch/blackfin/mach-bf527/boards/ezkit.c
+++ b/arch/blackfin/mach-bf527/boards/ezkit.c
@@ -416,7 +416,7 @@
 static struct mtd_partition bfin_spi_flash_partitions[] = {
 	{
 		.name = "bootloader",
-		.size = 0x00020000,
+		.size = 0x00040000,
 		.offset = 0,
 		.mask_flags = MTD_CAP_ROM
 	}, {