loader/uboot: Move to foo.ldconfig

Move to the foo.ldconfig convention to match the rest of the boot
loader. No functional change intended.

Sponsored by:		Netflix
Reviewed by:		tsoome, kevans
Differential Revision:	https://reviews.freebsd.org/D44059

stand/uboot/Makefile

@@ -40,7 +40,7 @@ HELP_FILENAME=	loader.help.uboot
 # Always add MI sources
 .include	"${BOOTSRC}/loader.mk"
 
-LDSCRIPT=	${.CURDIR}/arch/${MACHINE_CPUARCH}/ldscript.${MACHINE_CPUARCH}
+LDSCRIPT=	${.CURDIR}/arch/${MACHINE_CPUARCH}/${MACHINE_CPUARCH}.ldscript
 LDFLAGS=	-nostdlib -static -T ${LDSCRIPT}
 LDFLAGS+=	-Wl,-znotext
 

stand/uboot/arch/arm/Makefile.inc

@@ -4,22 +4,22 @@ UBLDR_LOADADDR?=	0x1000000
 
 SRCS+=		start.S conf.c self_reloc.c 
 
-ldscript.abs:
+abs.ldscript:
 	echo "UBLDR_LOADADDR = ${UBLDR_LOADADDR};" >${.TARGET}
 
-ldscript.pie:
+pie.ldscript:
 	echo "UBLDR_LOADADDR = 0;" >${.TARGET}
 
-ubldr: ${OBJS} ldscript.abs ${LDSCRIPT} ${DPADD}
-	${CC} ${CFLAGS} -T ldscript.abs ${LDFLAGS} \
+ubldr: ${OBJS} abs.ldscript ${LDSCRIPT} ${DPADD}
+	${CC} ${CFLAGS} -T abs.ldscript ${LDFLAGS} \
 	    -o ${.TARGET} ${OBJS} ${LDADD}
 
-ubldr.pie: ${OBJS} ldscript.pie ${LDSCRIPT} ${DPADD}
-	${CC} ${CFLAGS} -T ldscript.pie ${LDFLAGS} -pie -Wl,-Bsymbolic \
+ubldr.pie: ${OBJS} pie.ldscript ${LDSCRIPT} ${DPADD}
+	${CC} ${CFLAGS} -T pie.ldscript ${LDFLAGS} -pie -Wl,-Bsymbolic \
 	    -o ${.TARGET} ${OBJS} ${LDADD}
 
 ubldr.bin: ubldr.pie
 	${OBJCOPY} -S -O binary ubldr.pie ${.TARGET}
 
-CLEANFILES+=	ldscript.abs ldscript.pie ubldr ubldr.pie ubldr.bin
+CLEANFILES+=	abs.ldscript pie.ldscript ubldr ubldr.pie ubldr.bin