backports: fix compilation for 2.6.25 for math64 header

We need to ifdef correctly before assuming we can include that
header.

Signed-off-by: Luis R. Rodriguez <mcgrof@do-not-panic.com>
backports: add generic semaphore.h

Matthew generalized the semaphore implementation and part of
that collateral evolution consisted of changing the header
used for the expected routines from asm/semaphore.h to
linux/semaphore.h.

mcgrof@garbanzo ~/linux-next (git::master)$ git describe --contains \
	64ac24e738823161693bf791f87adc802cf529ff
v2.6.26-rc1~1155^2~5

commit 64ac24e738823161693bf791f87adc802cf529ff
Author: Matthew Wilcox <matthew@wil.cx>
Date:   Fri Mar 7 21:55:58 2008 -0500

    Generic semaphore implementation

    Semaphores are no longer performance-critical, so a generic C
    implementation is better for maintainability, debuggability and
    extensibility.  Thanks to Peter Zijlstra for fixing the lockdep
    warning.  Thanks to Harvey Harrison for pointing out that the
    unlikely() was unnecessary.

    Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
    Acked-by: Ingo Molnar <mingo@elte.hu>

Signed-off-by: Luis R. Rodriguez <mcgrof@do-not-panic.com>
backport: simplify #ifdefs in pci-aspm.h

Just use #else instead of two conditionals.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luis R. Rodriguez <mcgrof@do-not-panic.com>
backports: refresh patches for next-20130802 again

For some reason some other changes were picked up again now.

== ckmake-report.log ==

1   2.6.25              [  OK  ]
2   2.6.26              [  OK  ]
3   2.6.27              [  OK  ]
4   2.6.28              [  OK  ]
5   2.6.29              [  OK  ]
6   2.6.30              [  OK  ]
7   2.6.31              [  OK  ]
8   2.6.32              [  OK  ]
9   2.6.33              [  OK  ]
10  2.6.34              [  OK  ]
11  2.6.35              [  OK  ]
12  2.6.36              [  OK  ]
13  2.6.37              [  OK  ]
14  2.6.38              [  OK  ]
15  2.6.39              [  OK  ]
16  3.0.79              [  OK  ]
17  3.1.10              [  OK  ]
18  3.10-rc1            [  OK  ]
19  3.2.45              [  OK  ]
20  3.3.8               [  OK  ]
21  3.4.46              [  OK  ]
22  3.5.7               [  OK  ]
23  3.6.11              [  OK  ]
24  3.7.10              [  OK  ]
25  3.8.13              [  OK  ]
26  3.9.3               [  OK  ]

real    34m47.737s
user    937m23.708s
sys     129m50.928s

Signed-off-by: Luis R. Rodriguez <mcgrof@do-not-panic.com>