wcaxx: Update firmware for A8B/A4B to 1d0019/b0019.

These firmware images can handle system conditions that would previously result
in transmitted audio being intermittently silenced and then unsilenced.

Internal-Issue-ID: DAHDI-1087
Signed-off-by: Shaun Ruffell <sruffell@digium.com>

drivers/dahdi/firmware/Makefile

@@ -35,9 +35,9 @@ TE133_VERSION:=780019
 TE134_VERSION:=780017
 TE435_VERSION:=e0017
 A8A_VERSION:=1d0017
-A8B_VERSION:=1d0017
+A8B_VERSION:=1d0019
 A4A_VERSION:=a0017
-A4B_VERSION:=b0017
+A4B_VERSION:=b0019
 
 FIRMWARE_URL:=http://downloads.digium.com/pub/telephony/firmware/releases
 

drivers/dahdi/wcaxx-base.c

@@ -3886,9 +3886,9 @@ static int wcaxx_check_firmware(struct wcaxx *wc)
 	u32 firmware_version;
 	const bool force_firmware = false;
 	const unsigned int A4A_VERSION = 0x0a0017;
-	const unsigned int A4B_VERSION = 0x0b0017;
+	const unsigned int A4B_VERSION = 0x0b0019;
 	const unsigned int A8A_VERSION = 0x1d0017;
-	const unsigned int A8B_VERSION = 0x1d0017;
+	const unsigned int A8B_VERSION = 0x1d0019;
 
 	if (wc->desc == &device_a8a) {
 		firmware_version = A8A_VERSION;