Fixing #81 - Force Makefile to use bash
Fixing #81 - Force Makefile to use bash

We used PIPESTATUS which is bash only.

timvideos/HDMI2USB-jahanzeb-firmware,mithro/HDMI2USB,rohit91/HDMI2USB,rohit91/HDMI2USB,timvideos/HDMI2USB-jahanzeb-firmware,mithro/HDMI2USB,rohit91/HDMI2USB,rohit91/HDMI2USB,mithro/HDMI2USB,timvideos/HDMI2USB-jahanzeb-firmware,mithro/HDMI2USB,timvideos/HDMI2USB-jahanzeb-firmware,rohit91/HDMI2USB,mithro/HDMI2USB,timvideos/HDMI2USB-jahanzeb-firmware