[CHERRY-PICK] UnitTestFrameworkPkg: Use TianoCore mirror of subhook submodule

Change subhook url from https://github.com/Zeex/subhook to
https://github.com/tianocore/edk2-subhook because old url is
no longer available.

Also align .gitmodules file to use consistent LF line endings.

Signed-off-by: Michael D Kinney <[email protected]>
(cherry picked from edk2 commit 95d8a1c)

Author: mdkinney

.gitmodules

@@ -16,7 +16,7 @@
 	url = https://github.com/google/googletest.git
 [submodule "UnitTestFrameworkPkg/Library/SubhookLib/subhook"]
 	path = UnitTestFrameworkPkg/Library/SubhookLib/subhook
-	url = https://github.com/Zeex/subhook.git
+	url = https://github.com/tianocore/edk2-subhook.git
 [submodule "MdePkg/Library/BaseFdtLib/libfdt"]
 	path = MdePkg/Library/BaseFdtLib/libfdt
 	url = https://github.com/devicetree-org/pylibfdt.git

UnitTestFrameworkPkg/ReadMe.md

@@ -487,8 +487,8 @@ function to be compiled into the test application and then hooked to during a
 test.
 
 This library is mainly a wrapper around the
-[subhook](https://github.com/Zeex/subhook) header and source files. It is
-important to note that the use of the mock function macros and the creation
+[subhook](https://github.com/tianocore/edk2-subhook) header and source files. It
+is important to note that the use of the mock function macros and the creation
 of mock functions requires no knowledge about the SubhookLib. The SubhookLib
 library is entirely hidden and encapsulated within FunctionMockLib, and it
 is only mentioned here to provide a complete explanation on all the libraries