Add wifi_read_packet_filter() to the legacy wifi hal

This is used to implement readApfPacketFilterData() for legacy wifi
drivers.

Bug: 73804303
Test: builds!
Change-Id: I562911cc064efec747629628df4eab8128449b51
(cherry picked from commit f70b864ede31e0a3fd7afd7129895dec518052d7)
diff --git a/include/hardware_legacy/wifi_hal.h b/include/hardware_legacy/wifi_hal.h
index ab343c7..cdf6b48 100644
--- a/include/hardware_legacy/wifi_hal.h
+++ b/include/hardware_legacy/wifi_hal.h
@@ -453,6 +453,9 @@
      */
     wifi_error (*wifi_set_packet_filter)(wifi_interface_handle handle,
                                          const u8 *program, u32 len);
+    wifi_error (*wifi_read_packet_filter)(wifi_interface_handle handle,
+                                          u32 src_offset, u8 *host_dst,
+                                          u32 length);
     wifi_error (*wifi_get_roaming_capabilities)(wifi_interface_handle handle,
                                                 wifi_roaming_capabilities *caps);
     wifi_error (*wifi_enable_firmware_roaming)(wifi_interface_handle handle,