Prebid SDK iOS does not send OpenRTB 'hwv' object

[takenorim]

Describe the bug
I found Prebid SDK iOS does not send H/W information which is corresponding to hwv in terms of OpenRTB.

To Reproduce
Use Charles iOS app to capture traffic from actual iPhone devices.

Expected behavior
/device.hwv is sending to Prebid Server.

Additional context
It looks the Prebid SDK iOS tries to read hardware information by the following legacy logic. But, this does not work (at least my environment). Can someone confirm it with iPhone/iPad devices, please?

• prebid-mobile-ios/PrebidMobile/PrebidMobileRendering/Utilities/PBMDeviceAccessManager.m

  Lines 83 to 92 in 4020716

  	- (nullable NSString *)platformString {
  	size_t size;
  	sysctlbyname("hw.machine", NULL, &size, NULL, 0);
  	char *machine = malloc(size);
  	sysctlbyname("hw.machine", machine, &size, NULL, 0);
  	NSString *platform = [NSString stringWithUTF8String:machine];
  	free(machine);
  	return platform;
  	}

The following is Apple's developer guide, I'm not sure whether hw.machine still works as expected at recent iOS versions and iPhone/iPad devices.

• https://developer.apple.com/documentation/kernel/1387446-sysctlbyname
• https://developer.apple.com/documentation/kernel/1387446-sysctlbyname/determining_system_capabilities

[OlenaPostindustria]

Hi, @takenorim.

It turned out that the hwv field was not added to the request. I made a PR to fix this issue. The detection should work fine.

[YuriyVelichkoPI]

@jsligh, @OlenaPostindustria can we close this issue?

[OlenaPostindustria]

The respective PR was merged, so I assume we can close this issue.