[tsan][riscv] correct Go race detector mapping for RISC-V sv48 VMA (#154700)

The executable and heap range for RISC-V sv48 VMA is supposed to end at
0xe000000000, rather than 0x0e00000000 as currently configured.

Author: 4a6f656c

compiler-rt/lib/tsan/rtl/tsan_platform.h

@@ -721,7 +721,7 @@ struct MappingGoRiscv64_48 {
   static const uptr kShadowBeg = 0x200000000000ull;
   static const uptr kShadowEnd = 0x240000000000ull;
   static const uptr kLoAppMemBeg = 0x000000010000ull;
-  static const uptr kLoAppMemEnd = 0x000e00000000ull;
+  static const uptr kLoAppMemEnd = 0x00e000000000ull;
   static const uptr kMidAppMemBeg = 0;
   static const uptr kMidAppMemEnd = 0;
   static const uptr kHiAppMemBeg = 0;