STM32 TrustZone improvements (when tested with wolfIP)#775

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dgarske wants to merge 2 commits intowolfSSL:masterfrom

dgarske:stm32tz

Commits on May 8, 2026

stm32h5: cede SRAM2 + clear GPIO SECCFGR for NS apps (TZEN=1)
dgarske
committed
stm32h5: clear MPCBB SRAM2/3 PRIVCFGR so NS ETH DMA can access them
dgarske
committed