sgi-o2: bigger tmpfs

target/config/Config.in.runtime

@@ -170,6 +170,7 @@ config ADK_RUNTIME_TMPFS_SIZE
 	default "16384" if ADK_TARGET_VBOX
 	default "16384" if ADK_TARGET_SYSTEM_LEMOTE_YEELONG
 	default "32768" if ADK_TARGET_SYSTEM_IBM_X40
+	default "32768" if ADK_TARGET_SYSTEM_SGI_O2
 	default "32768" if ADK_TARGET_SYSTEM_RASPBERRY_PI
 	default "32768" if ADK_TARGET_SYSTEM_RASPBERRY_PI2
 	default "32768" if ADK_TARGET_SYSTEM_RASPBERRY_PI3