Move runfw to modules/usb.

While there, respect MK_SOURCELESS_UCODE.

Discussed with:	kevlo

sys/modules/Makefile

@@ -285,7 +285,6 @@ SUBDIR=	\
 	re \
 	reiserfs \
 	rl \
-	${_runfw} \
 	${_s3} \
 	${_safe} \
 	${_sbni} \
@@ -450,7 +449,6 @@ _fxp=		fxp
 _ispfw=		ispfw
 _mwlfw=		mwlfw
 _ralfw=		ralfw
-_runfw=		runfw
 _sf=		sf
 _sn=		sn
 _ti=		ti

sys/modules/usb/Makefile

@@ -32,8 +32,9 @@
 
 SUBDIR = usb
 SUBDIR += ${_dwc_otg} ehci ${_musb} ohci uhci xhci ${_uss820dci} ${_at91dci} \
-	  ${_atmegadci} ${_avr32dci} rsu rsufw
-SUBDIR += ${_rum} run ${_uath} upgt usie ural ${_zyd} ${_urtw} urtwn urtwnfw
+	  ${_atmegadci} ${_avr32dci} ${_rsu} ${_rsufw}
+SUBDIR += ${_rum} ${_run} ${_runfw} ${_uath} upgt usie ural ${_zyd} ${_urtw} 
+SUBDIR += ${_urtwn} ${_urtwnfw}
 SUBDIR += atp uhid ukbd ums udbp ufm uep
 SUBDIR += ucom u3g uark ubsa ubser uchcom ucycom ufoma uftdi ugensa uipaq ulpt \
 	  umct umcs umodem umoscom uplcom uslcom uvisor uvscom
@@ -54,6 +55,12 @@ _rum=		rum
 _uath=		uath
 _zyd=		zyd
 _kue=		kue
+_urtwn=		urtwn
+_urtwnfw=	urtwnfw
+_run=		run
+_runfw=		runfw
+_rsu=		rsu
+_rsufw=		rsufw
 .endif
 
 .if ${MACHINE_CPUARCH} == "amd64"