Changed test driver include folder to reflect it's a test driver

Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
diff --git a/scripts/generate_visualc_files.pl b/scripts/generate_visualc_files.pl
index 4695955..6c2b5e4 100755
--- a/scripts/generate_visualc_files.pl
+++ b/scripts/generate_visualc_files.pl
@@ -39,7 +39,7 @@
 my $source_dir = 'library';
 my $test_source_dir = 'tests/src';
 my $test_header_dir = 'tests/include/test';
-my $test_drivers_header_dir = 'tests/include/drivers';
+my $test_drivers_header_dir = 'tests/include/test/drivers';
 
 my @thirdparty_header_dirs = qw(
     3rdparty/everest/include/everest