amdgpu/addrlib: Add a member "bpp" for input of method AddrConvertTileIndex and AddrC...

amdgpu/addrlib: Add a member "bpp" for input of method AddrConvertTileIndex and AddrConvertTileInfoToHW

When clients queries tile Info from tile index and expects accurate
tileSplit info,  bits per pixel info is required to be provided since
this is necessary for computing tileSplitBytes; otherwise Addrlib will
return value of "tileBytes" instead if bpp is 0 - which is also
current logic. If clients don't need tileSplit info, it's OK to pass
bpp with value 0.