Eat cycles in sceUtilitySavedataGetStatus().

Matching tests.  Improves performance in Fieldrunners startup and I think
in game.
Merge pull request #5655 from unknownbrackets/perf

Eat cycles in sceUtilitySavedataGetStatus()
Update submodules
MemMap should not be included in MIPS.h.
Revert "Avoid caching when HW T&L with morph enabled."

This reverts commit 557eae7ca9b6130a4645e346049940116031b109.
Reduce the delay in __KernelVolatileTryMemLock. However, it's still too large.