This patch replaces the C compileable database of registers, bits,
IP, and ASIC models with scriptable human readable content.  The purpose
of this change is to make handling NPI/NTI in the future more manageable.

The patch first introduces a new compiler comp/compiler.c that handles
all register/bitfield and SOC15 ip offset headers.  Both for soc15 and
pre-soc15 headers.

Then introduce the database/{*,ip/*} content parsed from the drm-next
tree as of the time of this writing.

Then delete src/lib/ip and src/lib/asic as they're now obsolete.

Then change src/lib/discover* to support the new database API.

The CMake install scripts have been updated to install the database
to "../share/umr/database/" relative to where it installs the binaries.

Signed-off-by: Tom St Denis <tom.stdenis@amd.com>