tests: Add mbedtls_test_ prefix to rnd_* symbols

Add mbedtls_test_ prefix to rnd_buf_info and
rnd_pseudo_info types, to rnd_std_rand(),
rnd_zero_rand(), rnd_buffer_rand() and
rnd_pseudo_rand() functions.

Command to change *.function files:
find . -name "*.function" -exec awk -i inplace \
    '{sub(/rnd_(buf_info|pseudo_info|std_rand| \
    zero_rand|buffer_rand|pseudo_rand)/, \
    "mbedtls_test_&")}1' {} \;

Signed-off-by: Ronald Cron <ronald.cron@arm.com>
diff --git a/tests/suites/test_suite_mpi.function b/tests/suites/test_suite_mpi.function
index 895a087..02cd1a9 100644
--- a/tests/suites/test_suite_mpi.function
+++ b/tests/suites/test_suite_mpi.function
@@ -240,7 +240,7 @@
                             mbedtls_mpi_exp_mod( &X, &X, &X, NULL, NULL ) );
 
     TEST_INVALID_PARAM_RET( MBEDTLS_ERR_MPI_BAD_INPUT_DATA,
-                            mbedtls_mpi_fill_random( NULL, 42, rnd_std_rand,
+                            mbedtls_mpi_fill_random( NULL, 42, mbedtls_test_rnd_std_rand,
                                                      NULL ) );
     TEST_INVALID_PARAM_RET( MBEDTLS_ERR_MPI_BAD_INPUT_DATA,
                             mbedtls_mpi_fill_random( &X, 42, NULL, NULL ) );
@@ -1195,7 +1195,7 @@
     mbedtls_mpi_init( &X );
 
     TEST_ASSERT( mbedtls_mpi_read_string( &X, radix_X, input_X ) == 0 );
-    res = mbedtls_mpi_is_prime_ext( &X, 40, rnd_std_rand, NULL );
+    res = mbedtls_mpi_is_prime_ext( &X, 40, mbedtls_test_rnd_std_rand, NULL );
     TEST_ASSERT( res == div_result );
 
 exit:
@@ -1244,7 +1244,7 @@
 
     mbedtls_mpi_init( &X );
 
-    my_ret = mbedtls_mpi_gen_prime( &X, bits, flags, rnd_std_rand, NULL );
+    my_ret = mbedtls_mpi_gen_prime( &X, bits, flags, mbedtls_test_rnd_std_rand, NULL );
     TEST_ASSERT( my_ret == ref_ret );
 
     if( ref_ret == 0 )
@@ -1254,13 +1254,13 @@
         TEST_ASSERT( actual_bits >= (size_t) bits );
         TEST_ASSERT( actual_bits <= (size_t) bits + 1 );
 
-        TEST_ASSERT( mbedtls_mpi_is_prime_ext( &X, 40, rnd_std_rand, NULL )
+        TEST_ASSERT( mbedtls_mpi_is_prime_ext( &X, 40, mbedtls_test_rnd_std_rand, NULL )
                      == 0 );
         if( flags & MBEDTLS_MPI_GEN_PRIME_FLAG_DH )
         {
             /* X = ( X - 1 ) / 2 */
             TEST_ASSERT( mbedtls_mpi_shift_r( &X, 1 ) == 0 );
-            TEST_ASSERT( mbedtls_mpi_is_prime_ext( &X, 40, rnd_std_rand, NULL )
+            TEST_ASSERT( mbedtls_mpi_is_prime_ext( &X, 40, mbedtls_test_rnd_std_rand, NULL )
                          == 0 );
         }
     }