drivers: htc_debug: Avoid possible buffer overflow in reboot_block driver

Bug: 71363680
Change-Id: I1a07a74cae96b4548df4cb089e31485734149280
Signed-off-by: Chenglu Lin <chenglulin@android.com>

drivers/htc_debug/stability/htc_reboot_block.c

@@ -49,7 +49,7 @@ static int reboot_block_command(int reason, const char* msg)
 
 	block.reason = reason;
 	memset(&block.msg[0], 0, sizeof(block.msg));
-	strlcpy(&block.msg[0], msg, strlen(msg));
+	strlcpy(&block.msg[0], msg, sizeof(block.msg));
 
 	snprintf(filename, sizeof(filename),
 			"/dev/block/%s/by-name/%s", bootdev, pname);