Upgrade vbox from 5.1.38 to 5.2.22

Author: tstromberg

deploy/iso/minikube-iso/package/vbox-guest/vbox-guest.hash

@@ -1,3 +1,3 @@
-# From http://download.virtualbox.org/virtualbox/5.1.30/SHA256SUMS
-sha256 96cab2296fb014ce0a16b7b9603b52208b9403c10c1524b44201d3c274e8a821  VirtualBox-5.1.38.tar.bz2
-sha256 0e7ee2c78ebf7cd0d3a933d51148bef04a64f64fb27ccf70d59cddf9ca1e517a  VBoxGuestAdditions_5.1.38.iso
+# From http://download.virtualbox.org/virtualbox/5.2.22/SHA256SUMS
+sha256 5580e875349341a1aabc6d5d2f697d242f277487316faaf1fbe68d9014f788d4  VirtualBox-5.2.22.tar.bz2
+sha256 e51e33500a265b5c2d7bb2d03d32208df880523dfcb1e2dde2c78a0e0daa0603  VBoxGuestAdditions_5.2.22.iso

deploy/iso/minikube-iso/package/vbox-guest/vbox-guest.mk

@@ -4,15 +4,16 @@
 #
 ################################################################################
 
-VBOX_GUEST_VERSION = 5.1.38
+VBOX_GUEST_VERSION = 5.2.22
 VBOX_GUEST_SITE = http://download.virtualbox.org/virtualbox/$(VBOX_GUEST_VERSION)
 VBOX_GUEST_LICENSE = GPLv2
 VBOX_GUEST_LICENSE_FILES = COPYING
-VBOX_GUEST_SOURCE = VirtualBox-$(VBOX_GUEST_VERSION).tar.bz2
 VBOX_GUEST_EXTRA_DOWNLOADS = http://download.virtualbox.org/virtualbox/${VBOX_GUEST_VERSION}/VBoxGuestAdditions_${VBOX_GUEST_VERSION}.iso
+# Not sure if this is actually used, but the build seems to require it.
+VBOX_GUEST_SOURCE = VirtualBox-$(VBOX_GUEST_VERSION).tar.bz2
 
 define VBOX_GUEST_EXPORT_MODULES
-	( cd $(@D)/src/VBox/Additions/linux; ./export_modules modules.tar.gz )
+	( cd $(@D)/src/VBox/Additions/linux; ./export_modules.sh modules.tar.gz )
 	mkdir -p $(@D)/vbox-modules
 	tar -C $(@D)/vbox-modules -xzf $(@D)/src/VBox/Additions/linux/modules.tar.gz
 endef