ggml-hexagon: Initial Hexagon v68/v69 support (llama/17394)

ggml-hexagon: Initial Hexagon v68/v69 support (llama/17394)

* ggml-hexagon: fix build error with GCC

Add stdexcept include to fix GCC build errors

Signed-off-by: Mohamed Mediouni <redacted>
* ggml-hexagon: check VTCM acquire failures

Signed-off-by: Mohamed Mediouni <redacted>
* ggml-hexagon: disable destination bypass on older than v73

v68 errors out if having bypass enabled when the VTCM is the destination.

At least on v68 this made things actually work... not a proper fix though, so to look at later...

Signed-off-by: Mohamed Mediouni <redacted>
* ggml-hexagon: add initial v68/v69 support

v68 is the Hexagon revision notably used on the Snapdragon 8cx
Gen 3 and the QCM6490.

Also add support for v69.

8MB isn't a supported page size, so relax asked for page size constraint
for HAP_compute_res_attr_set_vtcm_param_v2 to optimal.

Signed-off-by: Mohamed Mediouni <redacted>
---------

Signed-off-by: Mohamed Mediouni <redacted>