Refreshed all patches.

Removed upstreamed:
- 203-MIPS-ath79-fix-restart.patch
- 330-Revert-MIPS-BCM47XX-Enable-74K-Core-ExternalSync-for.patch
- 051-0001-ovl-rename-is_merge-to-is_lowest.patch
- 051-0002-ovl-override-creds-with-the-ones-from-the-superblock.patch
- 051-0005-ovl-proper-cleanup-of-workdir.patch

Altered patches:
- 201-extra_optimization.patch
- 304-mips_disable_fpu.patch

Compile-tested on: ar71xx, cns3xxx, imx6, mpc85xx
Runtime-tested on: ar71xx, cns3xxx, imx6, mpc85xx

Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>