msm8226: Remove support for kernel authentication by default.

This removes the support to generate a signed kernel and also
removes the flag passed to the bootloader to verify the kernel
image.

Change-Id: Ia90706d4895ab73c0dfe93be80b4eb1246eab3c0
diff --git a/BoardConfig.mk b/BoardConfig.mk
index c0af966..67eb091 100644
--- a/BoardConfig.mk
+++ b/BoardConfig.mk
@@ -41,7 +41,7 @@
 BOARD_KERNEL_TAGS_OFFSET := 0x01E00000
 BOARD_RAMDISK_OFFSET     := 0x02000000
 
-TARGET_BOOTIMG_SIGNED := true
+#TARGET_BOOTIMG_SIGNED := true
 
 # Shader cache config options
 # Maximum size of the  GLES Shaders that can be cached for reuse.