linux-handhelds-2.6: Drop 2.6.21-hh4, add 2.6.21-hh6.

linux-handhelds-2.6: Drop 2.6.21-hh4, add 2.6.21-hh6.
* Changes since -hh5 are:
1. inpit_pda.h: Use KEY_POWER directly, has safe value.
2. asus716: PCMCIA cleanup.
3. h5000, htcmagician: Use mtd physmap driver.
4. htcmagician: Phone PM improvements.
5. htchermes: NAND tweaks, more robust IRQ init
6. mach-sa1100/: Cleanup
7. mach-sa1100/usb/usb-eth.c: Cleanup, tested to flaky, but work.
8. ts-adc, ts-adc-debounce: Fix handling of pen up events.
9. hamcop_base: Converted to platform_driver, fixes h2200 resume.
* Also, updated defconfigs from defconfigman r275.