msm: smd: use appropriate interrupt names while registering

The driver passes "smd_dev" as the interrupt name while requesting
interrupts. It is best to pass the node name for which it is requesting
the interrupt so it becomes easy to know which device is the interrupt
for.

Change-Id: I69bc1ce28a454510c40bdb874b332e4485e3a72b
Signed-off-by: Abhijeet Dharmapurikar <adharmap@codeaurora.org>