armv8-r: Add Arm Cortex-R82 non-MPU port (#1289)

The goal of this commit is to add the GCC/ARMClang non-MPU
port variant for ARM Cortex-R82 processor which is
ARMv8-R AArch64 based.
The work done is inspired by the GCC ARM_AARCH64 FreeRTOS port.

This port has the following features:
* Uses single security state (non TrustZone).
* Supports SMP (Symmetric multi-processing).
* Doesn't support Hypervisor (EL2).
* Doesn't support neither PMSA (MPU) nor VMSA (MMU).

Signed-off-by: Ahmed Ismail <Ahmed.Ismail@arm.com>

.github/.cSpellWords.txt

@@ -430,6 +430,7 @@ ldrbs
 LDRBS
 LDRNE
 ldsr
+ldxr
 lidt
 LINKR
 LJMP
@@ -505,6 +506,7 @@ movs
 movw
 MOVWF
 movx
+MPIDR
 MPLAB
 MPUCTRL
 MQTT
@@ -779,6 +781,7 @@ SETINTENA
 SETPSW
 SETR
 setvect
+sevl
 SFRC
 SHLL
 SHLR
@@ -809,6 +812,7 @@ STTBRK
 STTDLY
 STTOUT
 STTTO
+stxr
 SVACC
 svcne
 SVDIS

.github/scripts/kernel_checker.py

@@ -118,6 +118,7 @@ KERNEL_ARM_COLLAB_FILES_PATTERNS = [
     r'.*portable/.*/ARM_CM3_MPU*',
     r'.*portable/.*/ARM_CM4_MPU*',
     r'.*portable/.*/ARM_CM4F_MPU*',
+    r'.*portable/.*/ARM_CR82*',
 ]
 
 KERNEL_HEADER = [