Support kernal mode Module

Fix #5527
https://github.com/hrydgard/ppsspp/pull/5512/files No need
Update log information - menthion we try __KernelLoadExec
Only can use __KernelLoadExec when load BOOT.BIN
OSK: Let square serve as a spacebar.
Properly limit the space button so it can't go past the max text length.
Merge pull request #5529 from sum2012/kernal-load

Bypass to boot.bin from patched game
Merge pull request #5641 from thedax/oskSpacebar

OSK: Add a button to let the user enter spaces.
Merge remote-tracking branch 'origin/master' into master_0.9.7