hikey: wl18xx-fw: Update wifi firmware am: 088f85a26a
am: 6cae5ebda8

Change-Id: I18b7ea8aca0ff1c5817b0ed8f0fc56ddb9897b64
diff --git a/bt-wifi-firmware-util/wl18xx-fw-4.bin b/bt-wifi-firmware-util/wl18xx-fw-4.bin
index 252ea2d..5e65dbc 100755
--- a/bt-wifi-firmware-util/wl18xx-fw-4.bin
+++ b/bt-wifi-firmware-util/wl18xx-fw-4.bin
Binary files differ