binder: CertificateFormat -> RpcCertificateFormat.

Fixes: 199553357
Test: TH

Change-Id: Ifaea4598f125ac5a8395ea30729a0059a792efbb
diff --git a/libs/binder/RpcServer.cpp b/libs/binder/RpcServer.cpp
index 1d42fc3..5733993 100644
--- a/libs/binder/RpcServer.cpp
+++ b/libs/binder/RpcServer.cpp
@@ -141,7 +141,7 @@
     return ret;
 }
 
-std::vector<uint8_t> RpcServer::getCertificate(CertificateFormat format) {
+std::vector<uint8_t> RpcServer::getCertificate(RpcCertificateFormat format) {
     std::lock_guard<std::mutex> _l(mLock);
     return mCtx->getCertificate(format);
 }