msm: adsp-loader: Modify the adsp_state check to get subsystem

ADSP subsystem_get gets called based on the adsp state variable.
If the adsp state is down then subsystem_get gets called. In one
of the cases, adsp state is updated to system_up in the APR function,
upon subsystem notifier callback. As the adsp state got modified,
subsystem_get function does not get called from adsp loader.
Modifying the status check, such that subsystem_get gets called.

CRs-fixed: 1056157
Change-Id: Iad525d38afd6034d73d4c21f916a20343b24e39f
Signed-off-by: Yamit Mehta <ymehta@codeaurora.org>