tty: serial: msm_geni_serial: Disable the IRQ during resume_noirq

Suspending the uart console port invokes the uart port shutdown operation.
This disables and frees the concerned IRQ. Resuming the uart console
port invokes the uart port startup operation which requests for the IRQ.
The request_irq operation auto-enables the IRQ. In addition, resume_noirq
implicitly enables the IRQ. This leads to an unbalanced IRQ enable
warning.

Disable the IRQ during resume_noirq to suppress that warning.

Change-Id: I3317231763ecb2a499820b6bc996a30a2da85d0f
Signed-off-by: Karthikeyan Ramasubramanian <kramasub@codeaurora.org>