base: Fix gcc-13 build error

This change adds relevant errors that allow building with
gcc-13.

Change-Id: Ib97a90ef647a9cd9ec1bf1f2bde61daca85de427
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/68497
Maintainer: Bobby Bruce <bbruce@ucdavis.edu>
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Bobby Bruce <bbruce@ucdavis.edu>

src/arch/arm/insts/crypto.hh

@@ -38,6 +38,8 @@
 #ifndef __ARCH_ARM_INSTS_CRYPTO_HH__
 #define __ARCH_ARM_INSTS_CRYPTO_HH__
 
+#include <cstdint>
+
 namespace gem5
 {
 

src/base/cprintf_formats.hh

@@ -29,6 +29,7 @@
 #ifndef __BASE_CPRINTF_FORMATS_HH__
 #define __BASE_CPRINTF_FORMATS_HH__
 
+#include <cstdint>
 #include <cstring>
 #include <ostream>
 #include <sstream>

src/mem/ruby/common/Histogram.hh

@@ -29,6 +29,7 @@
 #ifndef __MEM_RUBY_COMMON_HISTOGRAM_HH__
 #define __MEM_RUBY_COMMON_HISTOGRAM_HH__
 
+#include <cstdint>
 #include <iostream>
 #include <vector>