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

Change-Id: Ia280fa733292c5ef8d3be808b2d8155644a24567
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