Fixed unresolved symbols

ecl module was missing for release build
qurt_external_hook() was missing.

Signed-off-by: Mark Charlebois <charlebm@gmail.com>

cmake/configs/qurt_eagle_release.cmake

@@ -77,6 +77,7 @@ set(config_module_list
 	lib/mathlib
 	lib/mathlib/math/filter
 	lib/geo
+	lib/ecl
 	lib/geo_lookup
 	lib/conversion
 	lib/terrain_estimation

src/platforms/qurt/px4_layer/main.cpp

@@ -62,6 +62,10 @@ extern const char *get_commands(void);
 void qurt_external_hook(void) __attribute__((weak));
 __END_DECLS
 
+void qurt_external_hook(void)
+{
+}
+
 static void run_cmd(map<string, px4_main_t> &apps, const vector<string> &appargs)
 {
 	// command is appargs[0]