[Feature][T8TSK-244][LOG] set LOG_BUG_SHIFT 512KB to save more kernel boot logs

Only Configure:Yes
Affected branch:GSW3.0-No-Connman
Affected module:LOG
Is it affected on both ZXIC and MTK:only MTK
Self-test: Yes
Doc Update:No

Change-Id: I9811aab8f6d40ad02b82ebbd95399c3117c9d3aa
diff --git a/src/kernel/linux/v4.19/init/Kconfig b/src/kernel/linux/v4.19/init/Kconfig
index dff317c..2006db9 100644
--- a/src/kernel/linux/v4.19/init/Kconfig
+++ b/src/kernel/linux/v4.19/init/Kconfig
@@ -590,7 +590,7 @@
 config LOG_BUF_SHIFT
 	int "Kernel log buffer size (16 => 64KB, 17 => 128KB)"
 	range 12 25
-	default 17
+	default 19
 	depends on PRINTK
 	help
 	  Select the minimal kernel log buffer size as a power of 2.