Increase TRITON_MAX_BLOCK X value.

(cherry picked from commit 666e81b)
(cherry picked from commit f6aaaf8)

Author: naromero77amd

torch/_inductor/runtime/hints.py

@@ -13,7 +13,7 @@
 # The following maximums only apply to runtime autotuning, when using FixedTritonConfig one may see larger values
 # NOTE: if these fail asserts submit a PR to increase them
 TRITON_MAX_BLOCK = {
-    "X": 4096,
+    "X": 8192,
     "Y": 1024,
     "Z": 1024,
     "R0_": 4096 * 16,  # * 16 is multi-kernel only