usb: Read string descriptor length first

This change adds an additional step when reading USB string descriptors.
Instead of passing a buffer length large enough for the largest possible
descriptor the first transfer reads the length and descriptor type from
the device and then submits a second transfer to read exactly the length
provided by the device.

This works around potentially buggy devices and drivers which cannot
handle control transfers with a larger than expected length.

Bug: 1239949
Change-Id: Ia32b31ae49c3b40f180bcef547ae6ca15be73e7d
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3102759
Commit-Queue: Reilly Grant <reillyg@chromium.org>
Commit-Queue: Matt Reynolds <mattreynolds@chromium.org>
Auto-Submit: Reilly Grant <reillyg@chromium.org>
Reviewed-by: Matt Reynolds <mattreynolds@chromium.org>
Cr-Commit-Position: refs/heads/main@{#913141}