u-boot_%.bbappend: Increase CONFIG_SYS_BOOTM_LEN to 64M

When booting the Nano PI Neo Air we got
Loading Kernel Image ... Image too large: increase CONFIG_SYS_BOOTM_LEN
Must RESET board to recover

Increased CONFIG_SYS_BOOTM_LEN to 64M to fix the error

Signed-off-by: Vicentiu Galanopulo <vicentiu@balena.io>

layers/meta-balena-allwinner/recipes-bsp/u-boot/files/0002-Change_CONFIG_SYS_BOOTM_LEN_to_64M.patch

@@ -0,0 +1,33 @@
+From 7357ca0c303cc6986273470a550b5c37116e7f21 Mon Sep 17 00:00:00 2001
+From: Vicentiu Galanopulo <vicentiu@balena.io>
+Date: Tue, 4 Aug 2020 16:06:23 +0200
+Subject: [PATCH] Update CONFIG_SYS_BOOTM_LEN to 64M
+
+When booting the Nano PI Neo Air we got
+Loading Kernel Image ... Image too large: increase CONFIG_SYS_BOOTM_LEN
+Must RESET board to recover
+
+Updated CONFIG_SYS_BOOTM_LEN to 64M to fix the error
+
+Upstream-Status: Inappropriate [configuration]
+Signed-off-by: Vicentiu Galanopulo <vicentiu@balena.io>
+---
+ include/configs/sunxi-common.h | 2 ++
+ 1 file changed, 2 insertions(+)
+
+diff --git a/include/configs/sunxi-common.h b/include/configs/sunxi-common.h
+index a5f5811275..97af50bafc 100644
+--- a/include/configs/sunxi-common.h
++++ b/include/configs/sunxi-common.h
+@@ -34,6 +34,8 @@
+ #ifdef CONFIG_ARM64
+ #define CONFIG_BUILD_TARGET "u-boot.itb"
+ #define CONFIG_SYS_BOOTM_LEN		(32 << 20)
++#else
++#define CONFIG_SYS_BOOTM_LEN   (64 << 20)      /* Increase max gunzip size 64M */
+ #endif
+ 
+ /* Serial & console */
+-- 
+2.17.1
+

layers/meta-balena-allwinner/recipes-bsp/u-boot/u-boot_%.bbappend

@@ -10,4 +10,5 @@ SRC_URI_remove = "file://resin-specific-env-integration-kconfig.patch"
 SRC_URI_append = " \
 		file://0001-Add-Resin-specific-boot-command.patch \
 		file://resin-specific-env-integration-kconfig_reworked.patch \
+		file://0002-Change_CONFIG_SYS_BOOTM_LEN_to_64M.patch \
 		"