Fix RawHID on Teensy 2.0

usb_rawhid/usb.c

 };
 
 
-static uint8_t PROGMEM rawhid_hid_report_desc[] = {
+static const uint8_t PROGMEM rawhid_hid_report_desc[] = {
         0x06, LSB(RAWHID_USAGE_PAGE), MSB(RAWHID_USAGE_PAGE),
         0x0A, LSB(RAWHID_USAGE), MSB(RAWHID_USAGE),
         0xA1, 0x01,                             // Collection 0x01

usb_rawhid/usb_api.cpp

 
 int usb_rawhid_class::available(void)
 {
-	uint8_t n=0, i, intr_state;
+	uint8_t n=0, intr_state;
 
 	intr_state = SREG;
 	cli();