radeonsi: add new CIK pci ids

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: mesa-stable@lists.freedesktop.org
(cherry picked from commit f50b6b489534f8f362953cbe08d37233f1eab669)
radeonsi: add new SI pci ids

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: mesa-stable@lists.freedesktop.org
(cherry picked from commit 153df688349dd6e55fa4c280ed6c8abd02c5f890)
Makefile: Switch from md5sums to sha256sums

We switched to these several stable releases ago, (since the MD5 algorithm has
been broken for some time), but only now did I get around to fixing this in
the Makefile rather than just performing this step manually.

CC: "10.2 10.3" <mesa-stable@lists.freedesktop.org>
(cherry picked from commit 46d03d37bf3a75e86f9f8ab56c6a939d04f23383)
glcpp: Don't use alternation in the lookahead for empty pragmas.

We've found that there's a buffer overrun bug in flex that's triggered by
using alternation in a lookahead pattern.

Fortunately, we don't need to match the exact {NEWLINE} expression to
detect an empty pragma. It suffices to verify that there are no non-space
characters before any newline character. So we can use a simple [\r\n] to
get the desired behavior while avoiding the flex bug.

Fixes the regression of piglit's 17000-consecutive-chars-identifier test,
(which has been crashing since commit
04e40fd337a244ee77ef9553985e9398ff0344af ).

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=82472
Signed-off-by: Carl Worth <cworth@cworth.org>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

CC: <mesa-stable@lists.freedesktop.org>
(cherry picked from commit 23163df24cf96107ee8ccb372db20f49e9d88948)