soc: qcom: glink_spi_xprt: Fix the suspend and resume sequence

If the WDSP component framework does not detect the concerned subsystem,
then the G-Link SPI Transport returns error. This prevents the system
from suspending.

If the concerned subsystem is not found, then let the system to suspend.

CRs-Fixed: 1055800
Change-Id: Id17993dbf28b45308464a7e0d1e5404747fefee1
Signed-off-by: Karthikeyan Ramasubramanian <kramasub@codeaurora.org>