open-vm-tools: use ENV{DEVTYPE}=="disk" in udev scsi rule

Fix udev scsi rule to not print warnings on boot.
The rule now checks for the device type. The previous fix by
trying to check for a valid timeout field did not work as expected.
This change uses the rule from Mike Latimer at
#216

open-vm-tools/AUTHORS

@@ -19,3 +19,7 @@ Andrew Stormont Fix finding C++ compiler for cross-compiling
 
 Josh Paetzel    Fix compilation error in clang 6.0
                 - https://github.com/vmware/open-vm-tools/pull/221
+
+Mike Latimer    Restrict udev rules to disk devices only
+                - https://github.com/vmware/open-vm-tools/pull/216
+

open-vm-tools/udev/99-vmware-scsi-udev.rules

@@ -2,6 +2,6 @@
 #
 # This file is part of open-vm-tools
 
-ACTION=="add", SUBSYSTEMS=="scsi", ATTRS{vendor}=="VMware*", ATTRS{timeout}=="?*", ATTRS{model}=="Virtual disk*", RUN+="/bin/sh -c 'echo 180 >/sys$DEVPATH/timeout'"
-ACTION=="add", SUBSYSTEMS=="scsi", ATTRS{vendor}=="VMware*", ATTRS{timeout}=="?*", ATTRS{model}=="VMware Virtual S", RUN+="/bin/sh -c 'echo 180 >/sys$DEVPATH/timeout'"
+ACTION=="add", SUBSYSTEMS=="scsi", ATTRS{vendor}=="VMware*", ATTRS{model}=="Virtual disk*", ENV{DEVTYPE}=="disk", RUN+="/bin/sh -c 'echo 180 >/sys$DEVPATH/device/timeout'"
+ACTION=="add", SUBSYSTEMS=="scsi", ATTRS{vendor}=="VMware*", ATTRS{model}=="VMware Virtual S", ENV{DEVTYPE}=="disk", RUN+="/bin/sh -c 'echo 180 >/sys$DEVPATH/device/timeout'"