serial: max310x: Add support for newer silicon revisions

New IC MAX14830 has 0xB4 silicon revision ID.
This patch adds support for such ICs.
Signed-off-by: NAlexander Shiyan <shc_work@mail.ru>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/tty/serial/max310x.c

@@ -236,7 +236,7 @@
 
 /* Misc definitions */
 #define MAX310X_FIFO_SIZE		(128)
-#define MAX310x_REV_MASK		(0xfc)
+#define MAX310x_REV_MASK		(0xf8)
 
 /* MAX3107 specific */
 #define MAX3107_REV_ID			(0xa0)