drm/xe/uapi: Fix grammar errors in xe_drm.h documentation

Fix various grammar issues in doc comments:
- flag are only valid -> flag is only valid
- should only ever used -> should only ever be used
- if isn't already -> if it isn't already
- Type of the this -> Type of this
- When sync passed in -> When sync is passed in
- the users responsibility -> the user's responsibility
- must qword aligned -> must be qword aligned
- for a observation -> for an observation
- a memory ranges -> memory ranges
- for each memory ranges -> for each memory range.
- Second ioctl call -> second ioctl call

Assisted-by: GitHub Copilot:claude-opus-4.6
Reviewed-by: Xin Wang <x.wang@intel.com>
Link: https://patch.msgid.link/20260407030046.3394004-3-shuicheng.lin@intel.com
Signed-off-by: Shuicheng Lin <shuicheng.lin@intel.com>

0 files changed, 0 insertions, 0 deletions