Fix Windows Compile failure due to missing <inttypes.h>

Including <inttypes.h> caused a windows build failure.
The test is now skipped if strtoimax & strtoumax are not supported.
It does this by checking for a define which is only available if
inttypes.h is not included. The include is done automagically inside e_os2.h.

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/8986)

test/params_conversion_test.c

@@ -9,13 +9,15 @@
  */
 
 #include <string.h>
-#include <inttypes.h>
 #include <openssl/params.h>
 #include "testutil.h"
 
-#ifdef OPENSSL_SYS_WINDOWS
-# define strcasecmp _stricmp
-#endif
+/* On machines that dont support <inttypes.h> just disable the tests */
+#if !defined(OPENSSL_NO_INTTYPES_H)
+
+# ifdef OPENSSL_SYS_WINDOWS
+#  define strcasecmp _stricmp
+# endif
 
 typedef struct {
     const OSSL_PARAM *param;
@@ -320,6 +322,8 @@ end:
     return res;
 }
 
+#endif /* OPENSSL_NO_INTTYPES_H */
+
 OPT_TEST_DECLARE_USAGE("file...\n")
 
 int setup_tests(void)
@@ -329,6 +333,9 @@ int setup_tests(void)
     if (n == 0)
         return 0;
 
+#if !defined(OPENSSL_NO_INTTYPES_H)
     ADD_ALL_TESTS(run_param_file_tests, n);
+#endif /* OPENSSL_NO_INTTYPES_H */
+
     return 1;
 }