HIDD: Check descriptor length and increase buffer

Since maximum descriptor length is 2048, we need to assign 2054 bytes of
buffer for another 6 bytes of data. Also added a const for maximum
descriptor length.

Bug: 113572366
Test: manual
Change-Id: Ie2b25c9e1a9f2019cbc7e6fbecbb08b643c87946
Merged-In: Ie2b25c9e1a9f2019cbc7e6fbecbb08b643c87946