Increase the trampoline cache size to cater for fastmem writes.

Fixes issue 6722.
Jit64: optimize floating-point/paired-single arith

The "else if (b != d)" branch was dead code and only works if b == d. Now
the last else block with two temporary XMM registers is not needed anymore.
Fix rendering on Adreno and Mali. This adds a new DriverDetails bug to know if the bufferstreaming is broken. Thanks degasus for fixing this.
ogl: only use bufferdata if buffersubdata is broken

Else nvidia fallback would be slower than needed
jit64: enable faddsx again

It was disabled because of issue 182, but as this game depeneds on FPRF, it was just 'fixed' because of the fallback to interpreter (which implements FPRF by default).
Also enables FPRF for this game via GameIni, so that the issue is still workaround.

If there are any regressions because of this commit, please try to enable FPRF in GameIni.
[Netplay] Allow a spectator to leave without affecting players.
Document some UGeckoInstruction fields