ARM: dts: msm: Add qfprom node for Scuba

Add qfprom device node for reading fuse bits to
differentiate between Scuba SoCs having feature
supported capabilities.

And also add l2 cache size and use macro for interrupt
flags in Scuba device tree.

Change-Id: I04088908b1ed0a0f06e73c3c56a9c3ecc1a7e3c8