releasetools: Generate recovery-from-boot.p with bsdiff if necessary

If TARGET_NOT_USE_GZIP_RECOVERY_RAMDISK is true, we want to use bsdiff
to create recovery-from-boot.p, otherwise there are high chances that
imgdiff will fail. Currently this is done only when running make, but
not when we re-create the patch from releasetools, so do it.

Also, since recovery-resource.dat is used as bonus data for imgdiff,
don't build it if we are going to use bsdiff.

Change-Id: I93a662a358ee79f56b8acd4329eedd166a176c66