gpu: nvgpu: bug: move nvgpu_do_assert_print() into assert.c

There was a header file circular dependency that was preventing
including some files. For example, for utils.h to include safe_ops.h
would include bug.h which included log.h which included bitops.h which
included utils.h. To break this loop, the macro nvgpu_do_assert_print()
into a function in a new file assert.c. With this change, log.h is no
longer required in bug.h.

This change also required adding a few includes in C files that were
picking up definitions through the chain above.

JIRA NVGPU-3868

Change-Id: Icf95677bb36e4aa034cba25594cf71f2d028c289
Signed-off-by: Philip Elcan <pelcan@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2168528
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

drivers/gpu/nvgpu/common/pmu/perfmon/pmu_perfmon_sw_gm20b.c

@@ -22,6 +22,7 @@
 
 
 #include <nvgpu/pmu/pmu_perfmon.h>
+#include <nvgpu/log.h>
 #include "pmu_perfmon_sw_gm20b.h"
 
 void nvgpu_gm20b_perfmon_sw_init(struct gk20a *g,

drivers/gpu/nvgpu/common/pmu/perfmon/pmu_perfmon_sw_gv11b.c

@@ -21,6 +21,7 @@
  */
 
 #include <nvgpu/pmu/pmu_perfmon.h>
+#include <nvgpu/log.h>
 #include "pmu_perfmon_sw_gv11b.h"
 
 void nvgpu_gv11b_perfmon_sw_init(struct gk20a *g,