Rename internal MBEDTLS_ENTROPY_HAVE_STRONG to ENTROPY_HAVE_STRONG

This commit renames the test-only flag MBEDTLS_ENTROPY_HAVE_STRONG to ENTROPY_HAVE_STRONG to make it more transparent
that it's an internal flag, and also to content the testscript tests/scripts/check-names.pl which previously complained
about the macro occurring in a comment in `entropy.c` without being defined in a library file.
diff --git a/library/entropy.c b/library/entropy.c
index 10449b8..7c09156 100644
--- a/library/entropy.c
+++ b/library/entropy.c
@@ -83,7 +83,7 @@
     mbedtls_havege_init( &ctx->havege_data );
 #endif
 
-    /* Reminder: Update MBEDTLS_ENTROPY_HAVE_STRONG in the test files
+    /* Reminder: Update ENTROPY_HAVE_STRONG in the test files
      *           when adding more strong entropy sources here. */
 
 #if defined(MBEDTLS_TEST_NULL_ENTROPY)
diff --git a/tests/suites/helpers.function b/tests/suites/helpers.function
index 39cd3c7..d367467 100644
--- a/tests/suites/helpers.function
+++ b/tests/suites/helpers.function
@@ -113,7 +113,7 @@
          defined(MBEDTLS_HAVEGE_C)             ||     \
          defined(MBEDTLS_ENTROPY_HARDWARE_ALT) ||     \
          defined(ENTROPY_NV_SEED) ) )
-#define MBEDTLS_ENTROPY_HAVE_STRONG
+#define ENTROPY_HAVE_STRONG
 #endif
 
 
diff --git a/tests/suites/test_suite_entropy.function b/tests/suites/test_suite_entropy.function
index 7983c76..2bab796 100644
--- a/tests/suites/test_suite_entropy.function
+++ b/tests/suites/test_suite_entropy.function
@@ -163,7 +163,7 @@
 }
 /* END_CASE */
 
-/* BEGIN_CASE depends_on:MBEDTLS_ENTROPY_HAVE_STRONG */
+/* BEGIN_CASE depends_on:ENTROPY_HAVE_STRONG */
 void entropy_func_len( int len, int ret )
 {
     mbedtls_entropy_context ctx;
@@ -224,7 +224,7 @@
 }
 /* END_CASE */
 
-/* BEGIN_CASE depends_on:MBEDTLS_ENTROPY_HAVE_STRONG */
+/* BEGIN_CASE depends_on:ENTROPY_HAVE_STRONG */
 void entropy_threshold( int threshold, int chunk_size, int result )
 {
     mbedtls_entropy_context ctx;
@@ -377,7 +377,7 @@
 }
 /* END_CASE */
 
-/* BEGIN_CASE depends_on:MBEDTLS_ENTROPY_HAVE_STRONG:MBEDTLS_SELF_TEST */
+/* BEGIN_CASE depends_on:ENTROPY_HAVE_STRONG:MBEDTLS_SELF_TEST */
 void entropy_selftest( int result )
 {
     TEST_ASSERT( mbedtls_entropy_self_test( 1 ) == result );
diff --git a/tests/suites/test_suite_rsa.function b/tests/suites/test_suite_rsa.function
index f41b14c..270e2d9 100644
--- a/tests/suites/test_suite_rsa.function
+++ b/tests/suites/test_suite_rsa.function
@@ -659,7 +659,7 @@
 }
 /* END_CASE */
 
-/* BEGIN_CASE depends_on:MBEDTLS_CTR_DRBG_C:MBEDTLS_ENTROPY_C:MBEDTLS_ENTROPY_HAVE_STRONG */
+/* BEGIN_CASE depends_on:MBEDTLS_CTR_DRBG_C:MBEDTLS_ENTROPY_C:ENTROPY_HAVE_STRONG */
 void mbedtls_rsa_gen_key( int nrbits, int exponent, int result)
 {
     mbedtls_rsa_context ctx;