Add new rc command for multi display

Add rcCreateDisplayById(uint32_t displayId) to create a display by
specifying the display Id.
The legacy rcCreateDisplay(uint32_t *displayId) allocate displayId by
the host.

Test: run emulator, create display 1
Change-Id: I30b7a046b636ad2b908a852413a2cd4c51be11f3

system/renderControl_enc/renderControl_client_context.cpp

diff --git a/system/renderControl_enc/renderControl_client_context.cpp b/system/renderControl_enc/renderControl_client_context.cpp
index d9d5b61..5cce243 100644
--- a/system/renderControl_enc/renderControl_client_context.cpp
+++ b/system/renderControl_enc/renderControl_client_context.cpp
@@ -72,6 +72,7 @@
 	rcDestroySyncKHRAsync = (rcDestroySyncKHRAsync_client_proc_t) getProc("rcDestroySyncKHRAsync", userData);
 	rcComposeWithoutPost = (rcComposeWithoutPost_client_proc_t) getProc("rcComposeWithoutPost", userData);
 	rcComposeAsyncWithoutPost = (rcComposeAsyncWithoutPost_client_proc_t) getProc("rcComposeAsyncWithoutPost", userData);
+	rcCreateDisplayById = (rcCreateDisplayById_client_proc_t) getProc("rcCreateDisplayById", userData);
 	return 0;
 }