Revert "fix build errors using gcc-4.7"

This reverts commit 2b72fcf1b2e16547b773400eec8716cbf139f3e9.
Revert "s3cfb_extdsp.h: Fix inline error"

This reverts commit e9230637105899015abd72fbadadf02c60717661.
Revert "fimc-lite-core.h: Fix inline error"

This reverts commit 814402e620c59d29f0c0b99bffc44a9a7ef82f33.