[tests][mmptest] Update test according to mmp changes.

Fixes these test failures:

    1) Failed : Xamarin.MMP.Tests.MMPTests.MM0132("inline-runtime-arch")
    The warning 'MM0132: Unknown optimization: 'inline-runtime-arch'. Valid optimizations are: remove-uithread-checks, dead-code-elimination, inline-isdirectbinding, inline-intptr-size.' was not found in the output:
    	Message #1 did not match:
    		actual:   'Unknown optimization: 'inline-runtime-arch'. Valid optimizations are: remove-uithread-checks, dead-code-elimination, inline-isdirectbinding, inline-intptr-size, blockliteral-setupblock.'
    		expected: 'Unknown optimization: 'inline-runtime-arch'. Valid optimizations are: remove-uithread-checks, dead-code-elimination, inline-isdirectbinding, inline-intptr-size.'
    	Message #2 did not match:
    		actual:   'Unknown optimization: 'inline-runtime-arch'. Valid optimizations are: remove-uithread-checks, dead-code-elimination, inline-isdirectbinding, inline-intptr-size, blockliteral-setupblock.'
    		expected: 'Unknown optimization: 'inline-runtime-arch'. Valid optimizations are: remove-uithread-checks, dead-code-elimination, inline-isdirectbinding, inline-intptr-size.'

    2) Failed : Xamarin.MMP.Tests.MMPTests.MM0132("foo")
    The warning 'MM0132: Unknown optimization: 'foo'. Valid optimizations are: remove-uithread-checks, dead-code-elimination, inline-isdirectbinding, inline-intptr-size.' was not found in the output:
    	Message #1 did not match:
    		actual:   'Unknown optimization: 'foo'. Valid optimizations are: remove-uithread-checks, dead-code-elimination, inline-isdirectbinding, inline-intptr-size, blockliteral-setupblock.'
    		expected: 'Unknown optimization: 'foo'. Valid optimizations are: remove-uithread-checks, dead-code-elimination, inline-isdirectbinding, inline-intptr-size.'
    	Message #2 did not match:
    		actual:   'Unknown optimization: 'foo'. Valid optimizations are: remove-uithread-checks, dead-code-elimination, inline-isdirectbinding, inline-intptr-size, blockliteral-setupblock.'
    		expected: 'Unknown optimization: 'foo'. Valid optimizations are: remove-uithread-checks, dead-code-elimination, inline-isdirectbinding, inline-intptr-size.'

tests/mmptest/src/MMPTest.cs

@@ -842,7 +842,7 @@ public void MM0132 (string opt)
 						"<LinkMode>Full</LinkMode>",
 				};
 				var rv = TI.TestUnifiedExecutable (test, shouldFail: false);
-				rv.Messages.AssertWarning (132, $"Unknown optimization: '{opt}'. Valid optimizations are: remove-uithread-checks, dead-code-elimination, inline-isdirectbinding, inline-intptr-size.");
+				rv.Messages.AssertWarning (132, $"Unknown optimization: '{opt}'. Valid optimizations are: remove-uithread-checks, dead-code-elimination, inline-isdirectbinding, inline-intptr-size, blockliteral-setupblock.");
 				rv.Messages.AssertErrorCount (0);
 			});
 		}