Make antenna always connected.

Setting configuration shouldn't change antenna state.

Test: instrumentation
Bug: b/36863239
Change-Id: I107c8d45928de2a5bc9c04d9db327a85e5760370
diff --git a/modules/radio/radio_hw.c b/modules/radio/radio_hw.c
index cdc3ef3..29204df 100644
--- a/modules/radio/radio_hw.c
+++ b/modules/radio/radio_hw.c
@@ -323,6 +323,7 @@
 
                 case CMD_CONFIG: {
                     tuner->config = cmd->config;
+                    tuner->config.antenna_connected = true;
                     event.type = RADIO_EVENT_CONFIG;
                     event.config = tuner->config;
                     ALOGV("%s CMD_CONFIG type %d low %d up %d",