Use String8/16 c_str [surfaceflinger]

Bug: 295394788
Test: make checkbuild
Change-Id: I9a8840a669d93298020fbfecb52048153860afa0
(cherry picked from commit 7a805e5f919882e0559e7e749bcd828c14983509)
diff --git a/services/surfaceflinger/tests/unittests/SurfaceFlinger_CreateDisplayTest.cpp b/services/surfaceflinger/tests/unittests/SurfaceFlinger_CreateDisplayTest.cpp
index dbf0cd8..28162f4 100644
--- a/services/surfaceflinger/tests/unittests/SurfaceFlinger_CreateDisplayTest.cpp
+++ b/services/surfaceflinger/tests/unittests/SurfaceFlinger_CreateDisplayTest.cpp
@@ -47,7 +47,7 @@
         const auto& display = getCurrentDisplayState(displayToken);
         EXPECT_TRUE(display.isVirtual());
         EXPECT_EQ(display.requestedRefreshRate, Fps::fromValue(requestedRefreshRate));
-        EXPECT_EQ(name.string(), display.displayName);
+        EXPECT_EQ(name.c_str(), display.displayName);
 
         std::optional<VirtualDisplayId> vid =
                 DisplayId::fromValue<VirtualDisplayId>(displayId | DisplayId::FLAG_VIRTUAL);