[MM]

[MM]
Rewrite the broken MmFindGap* functions. They were first searching for a gap between the already allocated memory areas and only after that trying to find a gap below or above these areas. This bug helped with 2 things. 1. Not overwriting the kernel mapping, because no memory area was defined for it and 2. allow csrss to map video memory at virtual adress 0x000a0000. The former is fixed by adding the appropriate memory area, the latter is hacked away, by making the addressing range start at 0x00100000. Also use MmHighestUserAddress instead of MmSystemRangestart - 1. Simplyfy overcomplicated code. Fix a DPRINT

svn path=/branches/ros-amd64-bringup/; revision=44327