misc: tegra-profiler: rd_alloc

misc: tegra-profiler: rd_alloc

quadd_unwind_start calls rd_alloc while holding a spinlock.
This is dangerous because rd_alloc allocates memory with
the GFP_KERNEL flag. This fix simply moves rd_alloc outside
the critical section.

Bug 1529894

Change-Id: I284e72d2fdd9089428d75f3c3efb79513a897b7e
Signed-off-by: Shu Zhong <shuz@nvidia.com>
Reviewed-on: http://git-master/r/433264
(cherry picked from commit e29a862f449b3f1831410162c4360041438017dc)
Reviewed-on: http://git-master/r/454479
Reviewed-by: Igor Nabirushkin <inabirushkin@nvidia.com>
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Tested-by: Maxim Morin <mmorin@nvidia.com>
Reviewed-by: Mitch Luban <mluban@nvidia.com>