Rename PERFETTO_EXPORT to PERFETTO_COMPONENT_EXPORT

We already have different export macros, and a future CL is going to
introduce a different one.

This rename tries to make it clearer that the PERFETTO_EXPORT macro is
only used for component builds.

Change-Id: Iad322496afb4560f42f81dbb5662a48cd384dd91
diff --git a/src/base/utils.cc b/src/base/utils.cc
index b4da80c..a4c0f3f 100644
--- a/src/base/utils.cc
+++ b/src/base/utils.cc
@@ -82,7 +82,8 @@
 
 // If we are building with -msse4 check that the CPU actually supports it.
 // This file must be kept in sync with gn/standalone/BUILD.gn.
-void PERFETTO_EXPORT __attribute__((constructor)) CheckCpuOptimizations() {
+void PERFETTO_COMPONENT_EXPORT __attribute__((constructor))
+CheckCpuOptimizations() {
   uint32_t eax = 0, ebx = 0, ecx = 0, edx = 0;
   PERFETTO_GETCPUID(eax, ebx, ecx, edx, 1, 0);