Move transport.c to QUANTUM_LIB_SRC (#11751)

common_features.mk

@@ -483,7 +483,7 @@ ifeq ($(strip $(SPLIT_KEYBOARD)), yes)
 
     # Determine which (if any) transport files are required
     ifneq ($(strip $(SPLIT_TRANSPORT)), custom)
-        QUANTUM_SRC += $(QUANTUM_DIR)/split_common/transport.c
+        QUANTUM_LIB_SRC += $(QUANTUM_DIR)/split_common/transport.c
         # Functions added via QUANTUM_LIB_SRC are only included in the final binary if they're called.
         # Unused functions are pruned away, which is why we can add multiple drivers here without bloat.
         ifeq ($(PLATFORM),AVR)

keyboards/handwired/dactyl_manuform/5x6_right_trackball/rules.mk

@@ -26,5 +26,5 @@ POINTING_DEVICE_ENABLE = yes
 SPLIT_KEYBOARD = yes
 SPLIT_TRANSPORT = custom
 
-SRC += pointer_transport.c pmw3360.c
-QUANTUM_LIB_SRC += serial.c i2c_master.c i2c_slave.c spi_master.c
+SRC += pmw3360.c
+QUANTUM_LIB_SRC += serial.c i2c_master.c i2c_slave.c spi_master.c pointer_transport.c