[PlayStation][gpup] Add platform specific entry for gpu process on playstation port.

[ukoneru]

[PlayStation][gpup] Add platform specific entry for gpu process on playstation port. https://bugs.webkit.org/show_bug.cgi?id=246024

Reviewed by NOBODY (OOPS!).

Adds support for entrypoint to launch GPU Process on playstation port. Current model uses the linux entry point which cannot execute on PlayStation

• Source/WebKit/GPUProcess/EntryPoint/playstation/GPUProcessMain.cpp Added
• Source/WebKit/GPUProcess/EntryPoint/playstation/GPUProcessMain.cpp:
• (main) Added
• (loadLibraryOrExit) Added https://github.com/WebKit/WebKit/commit/2b99adcc1af789deec79599c58086561f021d97f

Misc	iOS, tvOS & watchOS	macOS	Linux	Windows
✅ 🧪 style	✅ 🛠 ios	✅ 🛠 mac	✅ 🛠 wpe
	✅ 🛠 ios-sim	✅ 🛠 mac-debug	✅ 🛠 gtk	✅ 🛠 wincairo
✅ 🧪 webkitperl	✅ 🧪 ios-wk2	✅ 🛠 mac-AS-debug	✅ 🧪 gtk-wk2
	✅ 🧪 api-ios	✅ 🧪 api-mac	✅ 🧪 api-gtk
	✅ 🛠 tv	✅ 🧪 mac-wk1
	✅ 🛠 tv-sim	✅ 🧪 mac-wk2
~~🛠 🧪 merge~~	✅ 🛠 watch	✅ 🧪 mac-AS-debug-wk2
	✅ 🛠 watch-sim	✅ 🧪 mac-wk2-stress

[webkit-early-warning-system]

EWS run on previous version of this PR (hash https://github.com/WebKit/WebKit/commit/680d5e9a0ff3c81da59be6cf86641c86703bb630)

Misc	iOS, tvOS & watchOS	macOS	Linux	Windows
✅ 🧪 style	✅ 🛠 ios	⏳ 🛠 mac	✅ 🛠 wpe	⏳ 🛠 🧪 win
	✅ 🛠 ios-sim	⏳ 🛠 mac-debug	✅ 🛠 gtk	⏳ 🛠 wincairo
✅ 🧪 webkitperl	~~🧪 ios-wk2~~	⏳ 🛠 mac-AS-debug	~~🧪 gtk-wk2~~
	~~🧪 api-ios~~	⏳ 🧪 api-mac	~~🧪 api-gtk~~
	✅ 🛠 tv	⏳ 🧪 mac-wk1
	✅ 🛠 tv-sim	⏳ 🧪 mac-wk2
	✅ 🛠 watch	⏳ 🧪 mac-AS-debug-wk2
	✅ 🛠 watch-sim	⏳ 🧪 mac-wk2-stress

[webkit-early-warning-system]

EWS run on previous version of this PR (hash https://github.com/WebKit/WebKit/commit/52d1b2eb96f781be33d383a12215e4824f000e13)

Misc	iOS, tvOS & watchOS	macOS	Linux	Windows
❌ 🧪 style	✅ 🛠 ios	⏳ 🛠 mac	✅ 🛠 wpe	⏳ 🛠 🧪 win
	✅ 🛠 ios-sim	⏳ 🛠 mac-debug	✅ 🛠 gtk	⏳ 🛠 wincairo
✅ 🧪 webkitperl	~~🧪 ios-wk2~~	⏳ 🛠 mac-AS-debug	~~🧪 gtk-wk2~~
	~~🧪 api-ios~~	⏳ 🧪 api-mac	~~🧪 api-gtk~~
	✅ 🛠 tv	⏳ 🧪 mac-wk1
	✅ 🛠 tv-sim	⏳ 🧪 mac-wk2
	✅ 🛠 watch	⏳ 🧪 mac-AS-debug-wk2
	✅ 🛠 watch-sim	⏳ 🧪 mac-wk2-stress

[webkit-early-warning-system]

EWS run on previous version of this PR (hash https://github.com/WebKit/WebKit/commit/0d5cdb35c48317beb710fe705b9b7d0292c58b7b)

Misc	iOS, tvOS & watchOS	macOS	Linux	Windows
❌ 🧪 style	✅ 🛠 ios	⏳ 🛠 mac	✅ 🛠 wpe	⏳ 🛠 🧪 win
	✅ 🛠 ios-sim	⏳ 🛠 mac-debug	✅ 🛠 gtk	⏳ 🛠 wincairo
✅ 🧪 webkitperl	⏳ 🧪 ios-wk2	⏳ 🛠 mac-AS-debug	~~🧪 gtk-wk2~~
	⏳ 🧪 api-ios	⏳ 🧪 api-mac	⏳ 🧪 api-gtk
⏳ 🛠 🧪 jsc	✅ 🛠 tv	⏳ 🧪 mac-wk1	⏳ 🛠 jsc-armv7
	✅ 🛠 tv-sim	⏳ 🧪 mac-wk2	⏳ 🧪 jsc-armv7-tests
	✅ 🛠 watch	⏳ 🧪 mac-AS-debug-wk2
	✅ 🛠 watch-sim	⏳ 🧪 mac-wk2-stress

[webkit-early-warning-system]

EWS run on previous version of this PR (hash https://github.com/WebKit/WebKit/commit/6875cbd21215948f92adb18bfb9287f8836f1d4c)

Misc	iOS, tvOS & watchOS	macOS	Linux	Windows
✅ 🧪 style	✅ 🛠 ios	✅ 🛠 mac	✅ 🛠 wpe
	✅ 🛠 ios-sim	✅ 🛠 mac-debug	✅ 🛠 gtk	✅ 🛠 wincairo
✅ 🧪 webkitperl	✅ 🧪 ios-wk2	✅ 🛠 mac-AS-debug	✅ 🧪 gtk-wk2
	✅ 🧪 api-ios	✅ 🧪 api-mac	❌ 🧪 api-gtk
	✅ 🛠 tv	✅ 🧪 mac-wk1
	✅ 🛠 tv-sim	✅ 🧪 mac-wk2
❌ 🛠 🧪 merge	✅ 🛠 watch	✅ 🧪 mac-AS-debug-wk2
	✅ 🛠 watch-sim	✅ 🧪 mac-wk2-stress

[webkit-commit-queue]

This change contains multiple commits which are not squashed together, blocking PR #5042. Please squash the commits to land.

[webkit-early-warning-system]

EWS run on current version of this PR (hash https://github.com/WebKit/WebKit/commit/2b99adcc1af789deec79599c58086561f021d97f)

Misc	iOS, tvOS & watchOS	macOS	Linux	Windows
✅ 🧪 style	✅ 🛠 ios	✅ 🛠 mac	✅ 🛠 wpe
	✅ 🛠 ios-sim	✅ 🛠 mac-debug	✅ 🛠 gtk	✅ 🛠 wincairo
✅ 🧪 webkitperl	✅ 🧪 ios-wk2	✅ 🛠 mac-AS-debug	✅ 🧪 gtk-wk2
	✅ 🧪 api-ios	✅ 🧪 api-mac	✅ 🧪 api-gtk
	✅ 🛠 tv	✅ 🧪 mac-wk1
	✅ 🛠 tv-sim	✅ 🧪 mac-wk2
~~🛠 🧪 merge~~	✅ 🛠 watch	✅ 🧪 mac-AS-debug-wk2
	✅ 🛠 watch-sim	✅ 🧪 mac-wk2-stress

[ukoneru]

New pr will be opened. The force for some reason triggered more issues than needed.