vtest: fix protocol decls.

Fixes: 298059b97e (vtest: refactorized the run_renderer function)
Signed-off-by: Dave Airlie <airlied@redhat.com>

vtest/vtest.h

@@ -45,8 +45,8 @@ int vtest_resource_busy_wait(uint32_t length_dw);
 int vtest_renderer_create_fence(void);
 int vtest_poll(void);
 
-int vtest_ping_protocol_version(void);
-int vtest_protocol_version(void);
+int vtest_ping_protocol_version(uint32_t length_dw);
+int vtest_protocol_version(uint32_t length_dw);
 
 void vtest_destroy_renderer(void);
 #endif

vtest/vtest_renderer.c

@@ -232,7 +232,7 @@ end:
     return ret;
 }
 
-int vtest_ping_protocol_version(void)
+int vtest_ping_protocol_version(UNUSED uint32_t length_dw)
 {
     uint32_t hdr_buf[VTEST_HDR_SIZE];
     int ret;
@@ -245,7 +245,7 @@ int vtest_ping_protocol_version(void)
     return 0;
 }
 
-int vtest_protocol_version(void)
+int vtest_protocol_version(UNUSED uint32_t length_dw)
 {
     uint32_t hdr_buf[VTEST_HDR_SIZE];
     uint32_t version_buf[VCMD_PROTOCOL_VERSION_SIZE];