Recently, we added an intrinsic for the elect.sync PTX instruction (PR 104780). This patch updates the corresponding Op in NVVM Dialect to lower to the intrinsic instead of inline-ptx. The existing test under Conversion/ is migrated to check for the new pattern. A separate test is added to verify the lowered intrinsic under the Target/ directory. Signed-off-by: Durgadoss R <durgadossr@nvidia.com>