vp9/10 decoder_init: add missing alloc cast

Change-Id: I1ba4400d67095f3a360fb7d97ee8d118d4f741fe
diff --git a/vp10/vp10_dx_iface.c b/vp10/vp10_dx_iface.c
index c6e1874..5795a4d 100644
--- a/vp10/vp10_dx_iface.c
+++ b/vp10/vp10_dx_iface.c
@@ -88,7 +88,8 @@
   (void)data;
 
   if (!ctx->priv) {
-    vpx_codec_alg_priv_t *const priv = vpx_calloc(1, sizeof(*priv));
+    vpx_codec_alg_priv_t *const priv =
+        (vpx_codec_alg_priv_t *)vpx_calloc(1, sizeof(*priv));
     if (priv == NULL)
       return VPX_CODEC_MEM_ERROR;
 
diff --git a/vp9/vp9_dx_iface.c b/vp9/vp9_dx_iface.c
index 8119df8..eb2371e 100644
--- a/vp9/vp9_dx_iface.c
+++ b/vp9/vp9_dx_iface.c
@@ -88,7 +88,8 @@
   (void)data;
 
   if (!ctx->priv) {
-    vpx_codec_alg_priv_t *const priv = vpx_calloc(1, sizeof(*priv));
+    vpx_codec_alg_priv_t *const priv =
+        (vpx_codec_alg_priv_t *)vpx_calloc(1, sizeof(*priv));
     if (priv == NULL)
       return VPX_CODEC_MEM_ERROR;