msm: ipa: request Modem to load uC after SSR if required

This change removes the assert if uC hasn't been loaded for the
pipe reset procedure in SSR. Instead, when QMI handshake occurs
after SSR and uC hasn't been loaded, Modem is requested to try
and load uC again.

Change-Id: Id0b4da539311184b528ea0b5a0dd3bd00899f6cb
Signed-off-by: Sivan Reinstein <sivanr@codeaurora.org>
Acked-by: David Arinzon <darinzon@qti.qualcomm.com>