Replace ABSL_INTERNAL_LOG with ABSL_RAW_LOG in ReadMonotonicClockNanos.

This method is in the transitive callgraph of TCMalloc via absl::base_internal::CycleClock::Frequency().  ABSL_RAW_LOG avoids a potential reentrancy/deadlock issue when TCMalloc invokes `Frequency` while holding one of its locks.

PiperOrigin-RevId: 903293020
Change-Id: I4c8310fa32c1e12d049296377c5a9bf069ef513b

absl/base/internal/sysinfo.cc

diff --git a/absl/base/internal/sysinfo.cc b/absl/base/internal/sysinfo.cc
index a62dd31..cd08e51 100644
--- a/absl/base/internal/sysinfo.cc
+++ b/absl/base/internal/sysinfo.cc
@@ -244,8 +244,7 @@
   int rc = clock_gettime(CLOCK_MONOTONIC, &t);
 #endif
   if (rc != 0) {
-    ABSL_INTERNAL_LOG(
-        FATAL, "clock_gettime() failed: (" + std::to_string(errno) + ")");
+    ABSL_RAW_LOG(FATAL, "clock_gettime() failed: (%d)", errno);
   }
   return int64_t{t.tv_sec} * 1000000000 + t.tv_nsec;
 }