Added Phy debug dump

Author: vaibhaavram01

inc/switchtec/mrpc.h

@@ -100,6 +100,7 @@ enum mrpc_cmd {
 	MRPC_EP_RESOURCE_ACCESS = 0x8E,
 	MRPC_EP_TUNNEL_CFG = 0x8F,
 	MRPC_NVME_ADMIN_PASSTHRU = 0x91,
+	MRPC_PHY_DEBUG_DUMP = 0xFF,
 
 	MRPC_I2C_TWI_PING = 0x100,
 	MRPC_SECURITY_CONFIG_GET = 0x101,

lib/mrpc.c

@@ -97,6 +97,7 @@ const struct switchtec_mrpc switchtec_mrpc_table[MRPC_MAX_ID] = {
 	M(EP_RESOURCE_ACCESS,		"Endpoint Device CSR and MS Raw Access"),
 	M(EP_TUNNEL_CFG,		"Endpoint Device Tunnel Configuration"),
 	M(NVME_ADMIN_PASSTHRU,		"NVMe Admin Passthrough"),
+	M(PHY_DEBUG_DUMP,		"Dump PHY Registers"),
 	M(I2C_TWI_PING,			"I2C/TWI Ping"),
 	M(SECURITY_CONFIG_GET,		"Secure Configuration Get"),
 	M(SECURITY_CONFIG_SET,		"Secure Configuration Set"),