UPSTREAM: flashchips: Add Support for XMC XM25QU16C Add initial support for the SPI flash chip XM25QU16C Datasheet link: https://www.xmcwh.com/uploads/804/XM25QU16C_%20Ver1.8.pdf Tested with ch341a programmer: probe, read, write, erase (cherry picked from commit 7432b540c15a3208fa956ee974887f4b84e60498) Original-Change-Id: I0989b5dd239dd32f93e1a338a70e5d7279127d8d Original-Signed-off-by: Kan Sun <[email protected]> Original-Reviewed-on: https://review.coreboot.org/c/flashrom/+/83234 Original-Tested-by: build bot (Jenkins) <[email protected]> Original-Reviewed-by: Anastasia Klimchuk <[email protected]> GitOrigin-RevId: 7432b540c15a3208fa956ee974887f4b84e60498 Change-Id: I7d48136b9281eadb89a4cad97b90456ff1f47b23 Signed-off-by: chromeos-ci-prod <[email protected]> Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/flashrom/+/5740307 Reviewed-by: Hsuan Ting Chen <[email protected]> Commit-Queue: Hsuan Ting Chen <[email protected]>