Fix ASAN error in QNNPACK's integration of qlinear_dynamic. (#41967)
Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/41967
Test Plan: `buck test fbandroid/mode/asan xplat/assistant/oacr/nlu/tests:nlu_testsAndroid` no longer reports an error.
Reviewed By: kimishpatel, xuwenfang
Differential Revision: D22715307
Pulled By: AshkanAliabadi
fbshipit-source-id: bec7296b345125ec5243ee6e6c484246ecfca3b7
