test: add Linux full component build app

Exercise unrestricted Linux-target builds so unsupported hardware-only components are caught by CI.

Co-authored-by: Cursor <cursoragent@cursor.com>

components/esp_hal_gpspi/CMakeLists.txt

@@ -1,5 +1,9 @@
 idf_build_get_property(target IDF_TARGET)
 
+if(${target} STREQUAL "linux")
+    return() # This component is not supported by the POSIX/Linux simulator
+endif()
+
 set(srcs)
 set(includes "include")