Introduce a test for a sw implementation of inet_pton

Create a bypass define to simulate platforms
without AF_INET6.
Signed-off-by: Andrzej Kurek <andrzej.kurek@arm.com>
diff --git a/tests/scripts/all.sh b/tests/scripts/all.sh
index 465f9bb..3a0eb78 100755
--- a/tests/scripts/all.sh
+++ b/tests/scripts/all.sh
@@ -1219,6 +1219,17 @@
     tests/ssl-opt.sh -f 'Default\|opaque'
 }
 
+component_test_sw_inet_pton () {
+    msg "build: default plus MBEDTLS_TEST_SW_INET_PTON"
+
+    # MBEDTLS_TEST_HOOKS required for x509_crt_parse_cn_inet_pton
+    scripts/config.py set MBEDTLS_TEST_HOOKS
+    make CFLAGS="-DMBEDTLS_TEST_SW_INET_PTON"
+
+    msg "test: default plus MBEDTLS_TEST_SW_INET_PTON"
+    make test
+}
+
 component_test_crypto_full_md_light_only () {
     msg "build: crypto_full with only the light subset of MD"
     scripts/config.py crypto_full