Tools: fix executable permission and trailing whitespace

Tools/Linux_HAL_Essentials/pru/rangefinderpru/pru_ctrl.h

@@ -117,4 +117,3 @@ typedef struct{
 /* Definition of control register structures. */
 #define PRU0_CTRL (*((volatile pruCtrl*)0x22000))
 #define PRU1_CTRL (*((volatile pruCtrl*)0x24000))
-

Tools/Linux_HAL_Essentials/startup.sh

@@ -1,3 +1,5 @@
+#!/bin/bash
+
 if [ "`echo $1`" = "load" ]; then
     echo "Loading Test_Capes..."
     cp devicetree/pxf/BB-SPI0-PXF-01-00A0.dtbo /lib/firmware/