i2c: i2c-msm-v2: set irq flag to IRQF_EARLY_RESUME for i2c

I2C interrupts get enabled/disabled during transfers,if a
client driver tries to do transfer as part of early system
resume, i2c interrupts may not fire as they are not
registered as EARLY_RESUME IRQ's.

Change is to register interrupt as IRQF_EARLY_RESUME.

Change-Id: Iecbe887c51302dc64632ef45daee4e5ba3d18aa2
Signed-off-by: Subramanian Ananthanarayanan <skananth@codeaurora.org>