i2c: i2c-msm-geni: Change the high and low time for SCL

This change is to meet the spec for i2c at 400KHz. Note that there
is a QUP FW change along with this and then only this will work.
FW change takes care of the duty cycle, clock on/off.
FW change CR :  3019821
CR fixed : 3017809.

Change-Id: I7c03d78ce4c54454b0bb66dcd587f327e63d07e1
Signed-off-by: Mukesh Kumar Savaliya <msavaliy@codeaurora.org>