Update on "[ET-VK] Modify quantized linear naive shader to linearly dispatch work to improve performance."

This diff changes naive quantized linear mat mul op to use push constant instead of uniform buffers and change dispatch pattern to linear to improve performance.

Differential Revision: [D72862490](https://our.internmc.facebook.com/intern/diff/D72862490/)

[ghstack-poisoned]

Author: trivedivivek