Study Comments
Add config file for study (arm10c_defconfig)

- fix compile warning message.
- arm10c_defconfig add for iamroot arm10c study.
Merge branch 'master' of github.com:aceofall/linux into review

* 'master' of github.com:aceofall/linux:
  Add config file for study (arm10c_defconfig)
  Study Comments

Conflicts:
	arch/arm/mm/ioremap.c