Fix coding style issue

Signed-off-by: Paul Elliott <paul.elliott@arm.com>
diff --git a/library/ecp_curves.c b/library/ecp_curves.c
index 2e377a0..8288139 100644
--- a/library/ecp_curves.c
+++ b/library/ecp_curves.c
@@ -5585,7 +5585,7 @@
         /* M = B0 * 2^224
          * Oversize M once again takes any carry. */
         memmove((char *) M + P224_SIZE, M, P224_SIZE +
-        sizeof(mbedtls_mpi_uint)); memset(M, 0, P224_SIZE);
+                sizeof(mbedtls_mpi_uint)); memset(M, 0, P224_SIZE);
 
         /* M = A1 + B0 * 2^224
          * No need to have to call mbedtls_mpi_core_add() as as both bignums