Store literals in pinned memory when there isnt enough GPU memory

[pfultz2]

[codecov[bot]]

Codecov Report

:x: Patch coverage is 90.00000% with 1 line in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
src/include/migraphx/op/loop.hpp	66.67%	1 Missing :warning:

Additional details and impacted files

@@           Coverage Diff            @@
##           develop    #4049   +/-   ##
========================================
  Coverage    92.21%   92.21%           
========================================
  Files          561      561           
  Lines        27218    27231   +13     
========================================
+ Hits         25097    25110   +13     
  Misses        2121     2121           

Files with missing lines	Coverage Δ
src/include/migraphx/algorithm.hpp	96.97% <ø> (ø)
src/include/migraphx/operation.hpp	94.14% <100.00%> (ø)
src/include/migraphx/pass.hpp	92.31% <100.00%> (ø)
src/simplify_reshapes.cpp	99.04% <100.00%> (ø)
src/include/migraphx/op/loop.hpp	96.61% <66.67%> (-1.60%)	:arrow_down:

... and 4 files with indirect coverage changes

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