UPSTREAM: soc: qcom: qmi: Return EPROBE_DEFER if no address family

If a client comes up early in the boot process (perhaps was a built-in
driver), qmi_handle_init() will likely fail with a EAFNOSUPPORT since the
underlying ipc router hasn't init'd and registered the address family.
This should not be a fatal error since chances are, the router will come
up later, so recode the error to EPROBE_DEFER so that clients will retry
later.

Signed-off-by: Jeffrey Hugo <jeffrey.l.hugo@gmail.com>
Link: https://lore.kernel.org/r/20191106230511.1290-1-jeffrey.l.hugo@gmail.com


Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
(cherry picked from commit 52af26e33e700158e6549f1465fcf9da099fabfa)
Signed-off-by: John Stultz <john.stultz@linaro.org>
Change-Id: I26a0dabe9b1f3b8e9cc793f7f52ee8f658ecdce3