make this a bit more usable

- ssh: set HOME=/data/local/ so .ssh might be writable
- scp: look for ssh at /system/xbin/ssh where it is installed
- ssh: set tag to debug to match scp (scp doesn't work without ssh)

Change-Id: I8086cb8091ad4156777f511fe6dc9aac7d3fa52f
3 files changed