Update install.sh (respeaker#182) to --force-yes install

Author: SamhithPottem

install.sh

@@ -91,7 +91,7 @@ function install_kernel() {
 
    # Instead of retriving the lastest kernel & headers
   [ "X$FORCE_KERNEL" == "X" ] && {
-    apt-get -y install raspberrypi-kernel-headers raspberrypi-kernel
+    apt-get -y --force-yes install raspberrypi-kernel-headers raspberrypi-kernel
   } || {
     # We would like to a fixed version
     KERN_NAME=raspberrypi-kernel_${FORCE_KERNEL}_armhf.deb
@@ -108,7 +108,6 @@ function install_kernel() {
 which apt &>/dev/null
 if [[ $? -eq 0 ]]; then
   apt update -y
-
   apt-get -y install dkms git i2c-tools libasound2-plugins
   install_kernel
   # rpi-update checker