drm/i915/gem: fix typo in comment (I915_EXEC_NO_RELOC)

The comment referenced the flag name incorrectly as 'I915_EXEC_NORELOC'
(missing underscore). This patch corrects the spelling in the comment
only; there is no functional change.

Signed-off-by: Marlon Henrique Sanches <marlonsanches@estudante.ufscar.br>
Link: https://lore.kernel.org/r/20251013183123.438573-1-marlonsanches@estudante.ufscar.br
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

Author: MarlonHenq

drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c

@@ -142,7 +142,7 @@ enum {
  * we want to leave the object where it is and for all the existing relocations
  * to match. If the object is given a new address, or if userspace thinks the
  * object is elsewhere, we have to parse all the relocation entries and update
- * the addresses. Userspace can set the I915_EXEC_NORELOC flag to hint that
+ * the addresses. Userspace can set the I915_EXEC_NO_RELOC flag to hint that
  * all the target addresses in all of its objects match the value in the
  * relocation entries and that they all match the presumed offsets given by the
  * list of execbuffer objects. Using this knowledge, we know that if we haven't