serial: msm_geni_serial: Avoid suspend post port close

This fix is to stop kernel warning dump by managing interrupt
resource properly. Fixing this for wakeup interrupt enable
happening from suspend callback post port close operation.

CRs-fixed: 2506067
Change-Id: I34a6bc62e77231895fa537a1cd989b039077f6fa
Signed-off-by: Mukesh Kumar Savaliya <msavaliy@codeaurora.org>
Signed-off-by: Vipin Deep Kaur <vkaur@codeaurora.org>