arm64: Add config for AMD Pensando SoC platforms

Add ARCH_PENSANDO configuration option for AMD Pensando SoC
based platforms.

Signed-off-by: Brad Larson <blarson@amd.com>
Link: https://lore.kernel.org/r/20230925195610.47971-4-blarson@amd.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

arch/arm64/Kconfig.platforms

@@ -244,6 +244,18 @@ config ARCH_NPCM
 	  General support for NPCM8xx BMC (Arbel).
 	  Nuvoton NPCM8xx BMC based on the Cortex A35.
 
+config ARCH_PENSANDO
+	bool "AMD Pensando Platforms"
+	help
+	  This enables support for the ARMv8 based AMD Pensando SoC
+	  family to include the Elba SoC.
+
+	  AMD Pensando SoCs support a range of Distributed Services
+	  Cards in PCIe format installed into servers.  The Elba
+	  SoC includes 16 Cortex A-72 CPU cores, 144 P4-programmable
+	  cores for a minimal latency/jitter datapath, and network
+	  interfaces up to 200 Gb/s.
+
 config ARCH_QCOM
 	bool "Qualcomm Platforms"
 	select GPIOLIB