glsl/nir: Fix copying 64-bit values in uniform storage

The iterator `i` already walks the right amount now that is
incremented by `dmul`, so no need to `* 2`.  Fixes invalid memory
access in upcoming ARB_gl_spirv tests.

Failure bisected by Arcady Goldmints-Orlov.

Fixes: b019fe8a5b6 "glsl/nir: Fix handling of 64-bit values in uniform storage"
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
1 file changed