trusty: Increase size of ACVP shared memory

The boringssl ACVP config has grown, so we need to increase the size of
our memory allocation that we share with the Trusty test TA.

Test: acvptool -wrapper trusty_acvp_modulewrapper -regcap
Bug: None
Change-Id: Ia90f4972d0d2ac420b09110f5647355a44175267

trusty/utils/acvp/acvp_ipc.h

@@ -45,7 +45,7 @@ extern "C" {
  * This must be at least as long as the longest reply from the ACVP service
  * (currently the reply from getConfig()).
  */
-#define ACVP_MIN_SHARED_MEMORY 16384
+#define ACVP_MIN_SHARED_MEMORY 32768
 
 /**
  * acvp_req - Request for the Trusty ACVP app