i965: Use ~0ull when flagging all BRW_NEW_* dirty flags.

i965: Use ~0ull when flagging all BRW_NEW_* dirty flags.

~0 is 0xFFFFFFFF, which only covers the first 32 bits.  We need all 64.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Chris Forbes <chrisf@ijw.co.nz>