feature: Optimize intra-module kernel ISA allocations

So far, there is a separate page allocated for each kernel's ISA within
`KernelImmutableData::initialize()`. Apparently the ISA blocks are often
much smaller than a 64k page, which leads to poor memory utilization and
was even observed to cause the device OOM error if a single module has
several keys.

Improve the situation by reusing the parent allocation (owned by the
module instance) for modules, which kernel ISAs can fit together within
a single 64k page. This improves the memory utilization on a single
module level.

Related-To: NEO-7788
Signed-off-by: Maciej Bielski <maciej.bielski@intel.com>

shared/source/kernel/dispatch_kernel_encoder_interface.h

@@ -40,6 +40,7 @@ struct DispatchKernelEncoderI {
     virtual uint32_t getSurfaceStateHeapDataSize() const = 0;
 
     virtual GraphicsAllocation *getIsaAllocation() const = 0;
+    virtual uint64_t getIsaOffsetInParentAllocation() const = 0;
     virtual const uint8_t *getDynamicStateHeapData() const = 0;
 
     virtual uint32_t getRequiredWorkgroupOrder() const = 0;