[RISC-V] Replace load local address with load global

[tomeksowi]

One less instruction per site, auipc+ld instead of auipc+addi+ld.

Part of #84834, cc @dotnet/samsung

[dotnet-policy-service]

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[risc-vv]

RISC-V Release-CLR-VF2: 9465 / 9541 (99.20%)

=======================
      passed: 9465
      failed: 59
     skipped: 106
      killed: 17
------------------------
  TOTAL libs: 9647
 TOTAL tests: 9647
   REAL time: 2h 4min 45s 981ms
=======================

Release-CLR-VF2.md, Release-CLR-VF2.xml, testclr_output.tar.gz

Build information and commands

GIT: 09defcb1f6fc27d563a97d3a2c69f834ac3f758c
CI: a8426a46d8575dfcb3b5fec0d7d0b7a7c118d690
REPO: dotnet/runtime
BRANCH: main
CONFIG: Release
LIB_CONFIG: Release

RISC-V Release-FX-VF2: 629732 / 665870 (94.57%)

=======================
      passed: 629732
      failed: 145
     skipped: 1476
      killed: 35993
------------------------
  TOTAL libs: 258
 TOTAL tests: 667346
   REAL time: 2h 26min 8s 174ms
=======================

Release-FX-VF2.md, Release-FX-VF2.xml, testfx_output.tar.gz

Build information and commands

GIT: 09defcb1f6fc27d563a97d3a2c69f834ac3f758c
CI: a8426a46d8575dfcb3b5fec0d7d0b7a7c118d690
REPO: dotnet/runtime
BRANCH: main
CONFIG: Release
LIB_CONFIG: Release

RISC-V Release-CLR-QEMU: 9465 / 9541 (99.20%)

=======================
      passed: 9465
      failed: 59
     skipped: 106
      killed: 17
------------------------
  TOTAL libs: 9647
 TOTAL tests: 9647
   REAL time: 2h 45min 52s 580ms
=======================

Release-CLR-QEMU.md, Release-CLR-QEMU.xml, testclr_output.tar.gz

Build information and commands

GIT: 09defcb1f6fc27d563a97d3a2c69f834ac3f758c
CI: a8426a46d8575dfcb3b5fec0d7d0b7a7c118d690
REPO: dotnet/runtime
BRANCH: main
CONFIG: Release
LIB_CONFIG: Release

RISC-V Release-FX-QEMU: 629111 / 667101 (94.31%)

=======================
      passed: 629111
      failed: 334
     skipped: 1453
      killed: 37656
------------------------
  TOTAL libs: 258
 TOTAL tests: 668554
   REAL time: 2h 26min 12s 122ms
=======================

Release-FX-QEMU.md, Release-FX-QEMU.xml, testfx_output.tar.gz

Build information and commands

GIT: 09defcb1f6fc27d563a97d3a2c69f834ac3f758c
CI: a8426a46d8575dfcb3b5fec0d7d0b7a7c118d690
REPO: dotnet/runtime
BRANCH: main
CONFIG: Release
LIB_CONFIG: Release