Minor style improvements

Signed-off-by: Chris Jones <christopher.jones@arm.com>
diff --git a/library/oid.c b/library/oid.c
index c03d0d5..14a1a92 100644
--- a/library/oid.c
+++ b/library/oid.c
@@ -265,27 +265,27 @@
 static const oid_x509_ext_t oid_x509_ext[] =
 {
     {
-        OID_DESCRIPTOR( MBEDTLS_OID_BASIC_CONSTRAINTS,    "id-ce-basicConstraints",   "Basic Constraints" ),
+        OID_DESCRIPTOR( MBEDTLS_OID_BASIC_CONSTRAINTS,    "id-ce-basicConstraints",    "Basic Constraints" ),
         MBEDTLS_OID_X509_EXT_BASIC_CONSTRAINTS,
     },
     {
-        OID_DESCRIPTOR( MBEDTLS_OID_KEY_USAGE,            "id-ce-keyUsage",           "Key Usage" ),
+        OID_DESCRIPTOR( MBEDTLS_OID_KEY_USAGE,            "id-ce-keyUsage",            "Key Usage" ),
         MBEDTLS_OID_X509_EXT_KEY_USAGE,
     },
     {
-        OID_DESCRIPTOR( MBEDTLS_OID_EXTENDED_KEY_USAGE, "id-ce-extKeyUsage", "Extended Key Usage" ),
+        OID_DESCRIPTOR( MBEDTLS_OID_EXTENDED_KEY_USAGE,   "id-ce-extKeyUsage",         "Extended Key Usage" ),
         MBEDTLS_OID_X509_EXT_EXTENDED_KEY_USAGE,
     },
     {
-        OID_DESCRIPTOR( MBEDTLS_OID_SUBJECT_ALT_NAME, "id-ce-subjectAltName", "Subject Alt Name" ),
+        OID_DESCRIPTOR( MBEDTLS_OID_SUBJECT_ALT_NAME,     "id-ce-subjectAltName",      "Subject Alt Name" ),
         MBEDTLS_OID_X509_EXT_SUBJECT_ALT_NAME,
     },
     {
-        OID_DESCRIPTOR( MBEDTLS_OID_NS_CERT_TYPE, "id-netscape-certtype", "Netscape Certificate Type" ),
+        OID_DESCRIPTOR( MBEDTLS_OID_NS_CERT_TYPE,         "id-netscape-certtype",      "Netscape Certificate Type" ),
         MBEDTLS_OID_X509_EXT_NS_CERT_TYPE,
     },
     {
-        OID_DESCRIPTOR( MBEDTLS_OID_CERTIFICATE_POLICIES, "id-ce-certificatePolicies", "Certificate Policies" ),
+        OID_DESCRIPTOR( MBEDTLS_OID_CERTIFICATE_POLICIES, "id-ce-certificatePolicies",  "Certificate Policies" ),
         MBEDTLS_OID_X509_EXT_CERTIFICATE_POLICIES,
     },
     {
@@ -448,15 +448,15 @@
 static const oid_pk_alg_t oid_pk_alg[] =
 {
     {
-        OID_DESCRIPTOR( MBEDTLS_OID_PKCS1_RSA,      "rsaEncryption",   "RSA" ),
+        OID_DESCRIPTOR( MBEDTLS_OID_PKCS1_RSA,           "rsaEncryption",    "RSA" ),
         MBEDTLS_PK_RSA,
     },
     {
-        OID_DESCRIPTOR( MBEDTLS_OID_EC_ALG_UNRESTRICTED,  "id-ecPublicKey",   "Generic EC key" ),
+        OID_DESCRIPTOR( MBEDTLS_OID_EC_ALG_UNRESTRICTED, "id-ecPublicKey",   "Generic EC key" ),
         MBEDTLS_PK_ECKEY,
     },
     {
-        OID_DESCRIPTOR( MBEDTLS_OID_EC_ALG_ECDH,          "id-ecDH",          "EC key for ECDH" ),
+        OID_DESCRIPTOR( MBEDTLS_OID_EC_ALG_ECDH,         "id-ecDH",          "EC key for ECDH" ),
         MBEDTLS_PK_ECKEY_DH,
     },
     {