[wasm] Bump max value for wasm code size histogram

Wasm modules can now grow up to 1024 MB. Bump the maximum of the
corresponding histogram so we record the full range.

R=titzer@chromium.org

Change-Id: I984b2314fcb41435f300df6e8f63b62c096d1330
Reviewed-on: https://chromium-review.googlesource.com/1240337Reviewed-by: Ben Titzer <titzer@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#56185}

src/counters.h

@@ -1222,7 +1222,7 @@ class RuntimeCallTimerScope {
   HR(wasm_memory_allocation_result, V8.WasmMemoryAllocationResult, 0, 3, 4)    \
   HR(wasm_address_space_usage_mb, V8.WasmAddressSpaceUsageMiB, 0, 1 << 20,     \
      128)                                                                      \
-  HR(wasm_module_code_size_mb, V8.WasmModuleCodeSizeMiB, 0, 256, 64)
+  HR(wasm_module_code_size_mb, V8.WasmModuleCodeSizeMiB, 0, 1024, 64)
 
 #define HISTOGRAM_TIMER_LIST(HT)                                               \
   /* Garbage collection timers. */                                             \