Vendor ramdisk modules install to correct location

Install to recovery/root/first_stage_ramdisk if
BOARD_MOVE_RECOVERY_RESOURCES_TO_VENDOR_BOOT,
otherwise vendor-ramdisk. In addition, append /system
if not InstallInRoot().

On devices with dedicated recovery partition,
BOARD_MOVE_RECOVERY_RESOURCES_TO_VENDOR_BOOT is not set,
and this installs to the correct place (under $OUT/vendor-ramdisk).

On devices without a dedicated recovery partition:
- To install a module available before switching root
  to /first_stage_ramdisk, e.g. a binary under /system/bin,
  use recovery{_available} and install the recovery variant
  of the module.
- To install a module available after switching root
  to /first_stage_ramdisk, e.g. a binary under
  /first_stage_ramdisk/system/bin,
  use vendor_ramdisk{_available} and install the vendor_ramdisk
  variant of the module.

Test: pass
Bug: 156098440

Change-Id: I1af3f8889891a3e58263cda36f0680ce2b480499