Rename FIPS_MODE to FIPS_MODULE

This macro is used to determine if certain pieces of code should
become part of the FIPS module or not.  The old name was confusing.

Fixes #11538

Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
(Merged from https://github.com/openssl/openssl/pull/11539)
diff --git a/test/evp_extra_test.c b/test/evp_extra_test.c
index 115a133..b7e23a1 100644
--- a/test/evp_extra_test.c
+++ b/test/evp_extra_test.c
@@ -765,7 +765,7 @@
 }
 #endif
 
-#if !defined(OPENSSL_NO_SM2) && !defined(FIPS_MODE)
+#if !defined(OPENSSL_NO_SM2) && !defined(FIPS_MODULE)
 
 static int test_EVP_SM2_verify(void)
 {
@@ -1590,7 +1590,7 @@
 #ifndef OPENSSL_NO_EC
     ADD_TEST(test_EVP_PKCS82PKEY);
 #endif
-#if !defined(OPENSSL_NO_SM2) && !defined(FIPS_MODE)
+#if !defined(OPENSSL_NO_SM2) && !defined(FIPS_MODULE)
     ADD_TEST(test_EVP_SM2);
     ADD_TEST(test_EVP_SM2_verify);
 #endif