Concat initramfs to ramdisk if provided

Original implementation concatenated new initramfs to original ramdisk.
And would keep on appending initramfs's to the original.
Fixed this by generating scratch ramdisk path which ensures each
subsequent launch_cvd with initramfs_path generates a new ramdisk.

Bug: 137692367
Test: boot x86 cuttlefish on mainline kernel and initramfs
Change-Id: Ia155438559b29a9453a71ce676ec50e7a5764265
1 file changed
tree: 897f9bf1251217f46692720be26ee1b876b285b7
  1. common/
  2. guest/
  3. host/
  4. tests/
  5. tools/
  6. Android.bp
  7. Android.mk
  8. OWNERS
  9. TEST_MAPPING