Adapt to new PSA Crypto repo name

Patterns I looked for:
grep -i "psa-crypto"
grep -i "psa.*crypto.*repo"
grep -i "psa.*crypto.*root"

Signed-off-by: Ronald Cron <ronald.cron@arm.com>

scripts/mbedtls_dev/build_tree.py

@@ -19,7 +19,7 @@
 import os
 import inspect
 
-def looks_like_psa_crypto_root(path: str) -> bool:
+def looks_like_tf_psa_crypto_root(path: str) -> bool:
     """Whether the given directory looks like the root of the PSA Crypto source tree."""
     return all(os.path.isdir(os.path.join(path, subdir))
                for subdir in ['include', 'core', 'drivers', 'programs', 'tests'])
@@ -30,7 +30,7 @@ def looks_like_mbedtls_root(path: str) -> bool:
                for subdir in ['include', 'library', 'programs', 'tests'])
 
 def looks_like_root(path: str) -> bool:
-    return looks_like_psa_crypto_root(path) or looks_like_mbedtls_root(path)
+    return looks_like_tf_psa_crypto_root(path) or looks_like_mbedtls_root(path)
 
 def check_repo_path():
     """

scripts/mbedtls_dev/psa_storage.py

@@ -53,7 +53,7 @@ class Expr:
         """Update `value_cache` for expressions registered in `unknown_values`."""
         expressions = sorted(self.unknown_values)
         includes = ['include']
-        if build_tree.looks_like_psa_crypto_root('.'):
+        if build_tree.looks_like_tf_psa_crypto_root('.'):
             includes.append('drivers/builtin/include')
         values = c_build_helper.get_c_expression_values(
             'unsigned long', '%lu',