x86: Remove SSSE3 instruction for broadcast in memset.S (SSE2 Only)
commit b62ace27 Author: Noah Goldstein <goldstein.w.n@gmail.com> Date: Sun Feb 6 00:54:18 2022 -0600 x86: Improve vec generation in memset-vec-unaligned-erms.S Revert usage of 'pshufb' in broadcast logic as it is an SSSE3 instruction and memset.S is restricted to only SSE2 instructions. (cherry picked from commit 1b0c60f9)
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