Change error codes to more appropriate codes

The more precise error codes are borrowed from the ASN1 module.

Signed-off-by: David Horstmann <david.horstmann@arm.com>
diff --git a/library/oid.c b/library/oid.c
index acea125..86214b2 100644
--- a/library/oid.c
+++ b/library/oid.c
@@ -839,13 +839,13 @@
     value = 0;
     if ((oid->p[0]) == 0x80) {
         /* Overlong encoding is not allowed */
-        return MBEDTLS_ERR_OID_BUF_TOO_SMALL;
+        return MBEDTLS_ERR_ASN1_INVALID_DATA;
     }
 
     while (i < oid->len && ((oid->p[i] & 0x80) != 0)) {
         /* Prevent overflow in value. */
         if (value > (UINT_MAX >> 7)) {
-            return MBEDTLS_ERR_OID_BUF_TOO_SMALL;
+            return MBEDTLS_ERR_ASN1_INVALID_DATA;
         }
 
         value |= oid->p[i] & 0x7F;
@@ -853,7 +853,7 @@
         i++;
     }
     if (i >= oid->len) {
-        return MBEDTLS_ERR_OID_BUF_TOO_SMALL;
+        return MBEDTLS_ERR_ASN1_OUT_OF_DATA;
     }
     /* Last byte of first subidentifier */
     value |= oid->p[i] & 0x7F;
@@ -874,11 +874,11 @@
     for (; i < oid->len; i++) {
         /* Prevent overflow in value. */
         if (value > (UINT_MAX >> 7)) {
-            return MBEDTLS_ERR_OID_BUF_TOO_SMALL;
+            return MBEDTLS_ERR_ASN1_INVALID_DATA;
         }
         if ((value == 0) && ((oid->p[i]) == 0x80)) {
             /* Overlong encoding is not allowed */
-            return MBEDTLS_ERR_OID_BUF_TOO_SMALL;
+            return MBEDTLS_ERR_ASN1_INVALID_DATA;
         }
 
         value <<= 7;
diff --git a/tests/suites/test_suite_oid.data b/tests/suites/test_suite_oid.data
index f4801c4..b9fa654 100644
--- a/tests/suites/test_suite_oid.data
+++ b/tests/suites/test_suite_oid.data
@@ -102,20 +102,20 @@
 oid_get_numeric_string:"8837":0:"2.999"
 
 OID get numeric string - empty oid buffer
-oid_get_numeric_string:"":MBEDTLS_ERR_OID_BUF_TOO_SMALL:""
+oid_get_numeric_string:"":MBEDTLS_ERR_ASN1_OUT_OF_DATA:""
 
 OID get numeric string - no final / all bytes have top bit set
-oid_get_numeric_string:"818181":MBEDTLS_ERR_OID_BUF_TOO_SMALL:""
+oid_get_numeric_string:"818181":MBEDTLS_ERR_ASN1_OUT_OF_DATA:""
 
 # Encodes the number 0x0400000000 as a subidentifier which overflows 32-bits
 OID get numeric string - 32-bit overflow
-oid_get_numeric_string:"C080808000":MBEDTLS_ERR_OID_BUF_TOO_SMALL:""
+oid_get_numeric_string:"C080808000":MBEDTLS_ERR_ASN1_INVALID_DATA:""
 
 OID get numeric string - 32-bit overflow, second subidentifier
-oid_get_numeric_string:"2BC080808000":MBEDTLS_ERR_OID_BUF_TOO_SMALL:""
+oid_get_numeric_string:"2BC080808000":MBEDTLS_ERR_ASN1_INVALID_DATA:""
 
 OID get numeric string - overlong encoding
-oid_get_numeric_string:"8001":MBEDTLS_ERR_OID_BUF_TOO_SMALL:""
+oid_get_numeric_string:"8001":MBEDTLS_ERR_ASN1_INVALID_DATA:""
 
 OID get numeric string - overlong encoding, second subidentifier
-oid_get_numeric_string:"2B8001":MBEDTLS_ERR_OID_BUF_TOO_SMALL:""
+oid_get_numeric_string:"2B8001":MBEDTLS_ERR_ASN1_INVALID_DATA:""