imx233: don't dcp on stmp3600, allow touchscreen with HAVE_*

Change-Id: Icb9dd3c9b9abdf1c013a78d67576ac857a7f010f
diff --git a/firmware/SOURCES b/firmware/SOURCES
index 40e0f36..54e4530 100644
--- a/firmware/SOURCES
+++ b/firmware/SOURCES
@@ -535,10 +535,12 @@
 target/arm/imx233/lradc-imx233.c
 target/arm/imx233/pwm-imx233.c
 target/arm/imx233/rtc-imx233.c
+#if IMX233_SUBTARGET >= 3700
 target/arm/imx233/dcp-imx233.c
+#endif
 target/arm/imx233/emi-imx233.c
 target/arm/imx233/uartdbg-imx233.c
-# ifdef HAVE_TOUCHSCREEN
+# if defined(HAVE_TOUCHSCREEN) || defined(HAVE_TOUCHPAD_IMX233)
 target/arm/imx233/touchscreen-imx233.c
 # endif
 #ifndef BOOTLOADER