linux-firmware: update Marvell PCIe-USB8897-A2 firmware image

PCIe/USB-8897:
    WLAN (PCIe) firmware version: 15.68.7.p119
    Bluetooth (USB) firmware version: 15.28.7.p119
    The combo image will be downloaded through WLAN only.
Signed-off-by: Xinming Hu <huxm@marvell.com>
Signed-off-by: Cathy Luo <cluo@marvell.com>

WHENCE

@@ -742,7 +742,7 @@ File: mrvl/usb8897_uapsta.bin
 Version: 15.68.4.p103
 
 File: mrvl/pcie8897_uapsta.bin
-Version: 15.68.7.p77
+Version: 15.68.7.p119
 
 File: mrvl/sd8887_uapsta.bin
 Version: 15.68.7.p112