ARM: dts: msm: Combine double configuration of same i2c

A single i2c core has two entries in the same DT as bus-numbers
1 and 3. Both are combined as bus number 1.

Change-Id: Ib4839a1a8bec8a5941b5a345713aabd33ae8ce24
Signed-off-by: Gilad Avidov <gavidov@codeaurora.org>