[libc] Fix forward arm32 builtbot (#84794)

Introduced by #83441.

Author: gchatelet

libc/test/src/string/memory_utils/CMakeLists.txt

@@ -12,6 +12,7 @@ add_libc_test(
     libc.src.__support.CPP.array
     libc.src.__support.CPP.cstddef
     libc.src.__support.CPP.span
+    libc.src.__support.macros.properties.types
     libc.src.__support.macros.sanitizer
     libc.src.string.memory_utils.memory_utils
   UNIT_TEST_ONLY

libc/test/src/string/memory_utils/op_tests.cpp

@@ -10,6 +10,7 @@
 #include "src/__support/macros/properties/types.h" // LIBC_TYPES_HAS_INT64
 #include "src/string/memory_utils/op_aarch64.h"
 #include "src/string/memory_utils/op_builtin.h"
+#include "src/string/memory_utils/op_generic.h"
 #include "src/string/memory_utils/op_riscv.h"
 #include "src/string/memory_utils/op_x86.h"
 #include "test/UnitTest/Test.h"