ozone: evdev: block a footswitch as a keyboard

The RDing FootSwitch1F1 (sold under a variety of names) is a single-key
keyboard, which shouldn't prevent the virtual keyboard from appearing.
Its Vendor and Product IDs were found from a Googler's feedback report.

Bug: none
Test: none (since I don't have the device)
Change-Id: I217eb7aceaf912b79fa5a76d36e1a63979bf1e94
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2410257
Auto-Submit: Harry Cutts <hcutts@chromium.org>
Reviewed-by: Michael Spang <spang@chromium.org>
Commit-Queue: Michael Spang <spang@chromium.org>
Cr-Commit-Position: refs/heads/master@{#806976}

ui/events/ozone/evdev/event_device_info.cc

@@ -47,6 +47,7 @@ constexpr struct {
     {0x056e, 0x0141},  // Elecom EPRIM Blue LED 5 button mouse 228
     {0x056e, 0x0159},  // Elecom Blue LED Mouse 203
     {0x05e0, 0x1200},  // Zebra LS2208 barcode scanner
+    {0x0c45, 0x7403},  // RDing FootSwitch1F1
     {0x1bcf, 0x08a0},  // Kensington Pro Fit Full-size
 };