disp: msm: sde: refactor sde_hw_interrupts to use offsets from catalog

Refactor the SDE interrupts module to use the offsets in the catalog.
This avoids hard-coding offsets for interrupts within a block's
address space so when that block's base address is relocated the
interrupts for that block are shifted as well.

Change-Id: I08f66c0e93bbe102dfe67350c97c5c7a4fb5039a
Signed-off-by: Steve Cohen <cohens@codeaurora.org>