ARM: dts: qcom: Fix danipc address for hex2 on fsm9900

Specify proper danipc address and the shm size for hex2 on all
FSM9900 targets.

Change-Id: If77b107340f2c9be8c02233c1e4a1b87b83dbf38
Acked-by: Xiuping Lu <xiupingl@qti.qualcomm.com>
Signed-off-by: Rohit Vaswani <rvaswani@codeaurora.org>