drivers/crypto: aspeed: Add Caliptra ECDSA384 support

Aspeed AST27xx SoCs integrate the CPTRA 1.0 secure IP, which export
an ECDSA384_SIGNATURE_VERIFY mailbox command service for SoC to use.

This patch is verified by the FIT signature verification using the
"sha384,ecdsa384" algorithm.

Signed-off-by: Chia-Wei Wang <chiawei_wang@aspeedtech.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/crypto/aspeed/Makefile b/drivers/crypto/aspeed/Makefile
index 570587e..00def35 100644
--- a/drivers/crypto/aspeed/Makefile
+++ b/drivers/crypto/aspeed/Makefile
@@ -1,3 +1,4 @@
 obj-$(CONFIG_ASPEED_HACE) += aspeed_hace.o
 obj-$(CONFIG_ASPEED_ACRY) += aspeed_acry.o
 obj-$(CONFIG_ASPEED_CPTRA_SHA) += cptra_sha.o
+obj-$(CONFIG_ASPEED_CPTRA_ECDSA) += cptra_ecdsa.o