Merge remote-tracking branch 'origin/master' into dev/abrestic/upstream-merge

* origin/master:
  lib: sbi: Fix mstatus_init() for RV32 when Sscofpmf is not available
  lib: sbi: Implement Sstc extension
  docs: pmu: Improve the PMU DT bindings
  lib: sbi/hart: preserve csr validation value
  include: correct the definition of MSTATUS_VS
  lib: utils/serial: support 'reg-offset' property
  lib: irqchip/imsic: configure mstateen
  lib: sbi: Detect Smstateen CSRs at boot-time
  lib: sbi: Add Smstateen extension defines
  lib: sbi: Enable Svpbmt extension in the menvcfg CSR
  lib: sbi: Enable Zicbo[m|z] extensions in the menvcfg CSR
  lib: sbi: Detect menvcfg CSR at boot time
  include: Add defines for [m|h|s]envcfg CSRs

Signed-off-by: Andrew Bresticker <abrestic@rivosinc.com>