[NFC] Update typo in iree-e2e-matmul-test.cc (#16293)

diff --git a/tools/iree-e2e-matmul-test.cc b/tools/iree-e2e-matmul-test.cc
index a0bdabb..904fe56 100644
--- a/tools/iree-e2e-matmul-test.cc
+++ b/tools/iree-e2e-matmul-test.cc
@@ -227,7 +227,7 @@
 REFERENCE_MATMUL(int8_t, int8_t, int32_t, int32_t)
 
 // Reference mamtul instantiations from macro REFERENCE_MATMUL
-// for the int8_t input, int32_t accumlation, and int32_t result.
+// for the int32_t input, int32_t accumlation, and int32_t result.
 // [i32 <= i32 * i32 + i32]
 REFERENCE_MATMUL(int32_t, int32_t, int32_t, int32_t)