payloads/tianocore: Rename TianoCore to edk2

coreboot uses TianoCore interchangeably with EDK II, and whilst the
meaning is generally clear, it's not the payload it uses. EDK II is
commonly written as edk2.

coreboot builds edk2 directly from the edk2 repository. Whilst it
can build some components from edk2-platforms, the target is still
edk2.

[1] tianocore.org - "Welcome to TianoCore, the community supporting"
[2] tianocore.org - "EDK II is a modern, feature-rich, cross-platform
firmware development environment for the UEFI and UEFI Platform
Initialization (PI) specifications."

Signed-off-by: Sean Rhodes <sean@starlabs.systems>
Change-Id: I4de125d92ae38ff8dfd0c4c06806c2d2921945ab
Reviewed-on: https://review.coreboot.org/c/coreboot/+/65820
Reviewed-by: Lean Sheng Tan <sheng.tan@9elements.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>

Documentation/releases/coreboot-4.15-relnotes.md

@@ -52,9 +52,9 @@ Deprecations and incompatible changes
 
 Drop the deprecated COREBOOTPAYLOAD option, and replace it with MrChromebox's
 updated UefiPayloadPkg option. Simplify the Kconfig options to make it easier
-to build from upstream edk2 master. Drop the TIANOCORE_USE_8254_TIMER Kconfig
+to build from upstream edk2 master. Drop the EDK2_USE_8254_TIMER Kconfig
 option since it applies only to CorebootPayloadPkg. Clean up the Makefile now
-that we're only building from a single Tianocore package/target.
+that we're only building from a single edk2 package/target.
 
 ### Remove old lp4x and ddr4 versions of spd_tools
 

Documentation/releases/coreboot-4.6-relnotes.md

@@ -55,15 +55,15 @@ is here: https://github.com/siro20/coreboot/tree/cbui/payloads/cbui
 
 ### UEFI support: A long road to go
 
-coreboot can be used with the Tianocore EDK2 UEFI implementation which
+coreboot can be used with the edk2 UEFI implementation which
 is open source and available at Github. Sadly it is not currently
 integrated into the coreboot build. This has several reasons:
 
-* EDK2 only supports GCC 4.8 profile. coreboot is now running on GCC 6.3.0.
-* Incompatibilities with code inside the EDK2 which has not been updated.
+* edk2 only supports GCC 4.8 profile. coreboot is now running on GCC 6.3.0.
+* Incompatibilities with code inside the edk2 which has not been updated.
 
 We started to make progress with the integration into our sources and
-the hope is that by the end of the summer, we finally support the EDK2
+the hope is that by the end of the summer, we finally support the edk2
 payload out-of-the- box. See the current patch state at
 http://review.coreboot.org/#/c/15057/
 

Documentation/releases/coreboot-4.7-relnotes.md

@@ -84,7 +84,7 @@ General changes
 
 * Integrate me_cleaner
 * Add flashconsole implementation
-* Build Tianocore UEFI payload from upstream source
+* Build edk2 UEFI payload from upstream source
 * Remove CMOS NVRAM configurable baud rates
 * A common mrc_cache driver to store romstage settings in SPI flash
 

Documentation/releases/coreboot-4.8.1-relnotes.md

@@ -71,7 +71,7 @@ detection
 Payloads
 --------
 * Bumped SeaBIOS to 1.11.1
-* Improved TianoCore integration
+* Improved edk2 integration
 
 Security
 --------