ipq40xx: enable UBI size checks for some Linksys NAND devices

Add correct NAND_SIZE in device definitions for EA6350v3, EA8300, MR8300,
WHW01 and WHW03v2, to enable improved image size checks wrt UBI reserved
blocks on NAND devices.

Signed-off-by: Tony Ambardar <itugrok@yahoo.com>

target/linux/ipq40xx/image/generic.mk

@@ -680,6 +680,7 @@ define Device/linksys_ea6350v3
 	PAGESIZE := 2048
 	KERNEL_SIZE := 5120k
 	IMAGE_SIZE := 35840k
+	NAND_SIZE := 128m
 	UBINIZE_OPTS := -E 5
 	IMAGES += factory.bin
 	IMAGE/factory.bin := append-kernel | append-uImage-fakehdr filesystem | pad-to $$$$(KERNEL_SIZE) | append-ubi | linksys-image type=EA6350v3
@@ -694,6 +695,7 @@ define Device/linksys_ea8300
 	SOC := qcom-ipq4019
 	KERNEL_SIZE := 5120k
 	IMAGE_SIZE := 84992k
+	NAND_SIZE := 256m
 	BLOCKSIZE := 128k
 	PAGESIZE := 2048
 	UBINIZE_OPTS := -E 5    # EOD marks to "hide" factory sig at EOF
@@ -711,6 +713,7 @@ define Device/linksys_mr8300
 	SOC := qcom-ipq4019
 	KERNEL_SIZE := 5120k
 	IMAGE_SIZE := 84992k
+	NAND_SIZE := 256m
 	BLOCKSIZE := 128k
 	PAGESIZE := 2048
 	UBINIZE_OPTS := -E 5    # EOD marks to "hide" factory sig at EOF
@@ -728,6 +731,7 @@ define Device/linksys_whw03v2
 	SOC := qcom-ipq4019
 	KERNEL_SIZE := 6144k
 	IMAGE_SIZE := 158720k
+	NAND_SIZE := 512m
 	BLOCKSIZE := 128k
 	PAGESIZE := 2048
 	UBINIZE_OPTS := -E 5    # EOD marks to "hide" factory sig at EOF
@@ -743,6 +747,7 @@ define Device/linksys_whw01
 	DEVICE_MODEL := WHW01
 	KERNEL_SIZE := 6144k
 	IMAGE_SIZE := 75776k
+	NAND_SIZE := 256m
 	SOC := qcom-ipq4018
 	BLOCKSIZE := 128k
 	PAGESIZE := 2048