android: pan/bi: Use new packing

Fixes the following building error:

external/mesa/src/panfrost/bifrost/bi_pack.c:26:10: fatal error: 'bi_generated_pack.h' file not found
         ^~~~~~~~~~~~~~~~~~~~~
1 error generated.

Fixes: 2ff53879 ("pan/bi: Use new packing")
Signed-off-by: Mauro Rossi <issor.oruam@gmail.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <!6765>