all: Revert libusb-1.0 support

Listing of usb devices with libusb-1.0 is too slow and not usable for
flashing or cold-flashing Nokia N900.

Old libusb (0.1) does not have this problem and works perfectly.

Problem for libusb-1.0 was reported at least two times into libusb-devel
mailing list, but upstream developers are totally ignore it. One message is
in archive: https://sourceforge.net/p/libusb/mailman/message/34985373/

Because of that there is just one option: use tested and working libusb 0.1
library instead some experimental and non-working libusb-1.0.

src/Makefile

@@ -11,7 +11,7 @@ HOST_CC = $(HOST_COMPILE)$(CC)
 
 CPPFLAGS += -DVERSION=\"$(VERSION)\" -DBUILD_DATE="\"$(BUILD_DATE)\"" -D_GNU_SOURCE -D_POSIX_C_SOURCE=200809L
 CFLAGS += -W -Wall -O2 -pedantic -std=c99
-LIBS += -lusb-1.0
+LIBS += -lusb
 
 DEPENDS = Makefile ../config.mk