amlogic: Fix prefixes in the PM code

Remove the GXBB prefix from the code in the common directory and add
SoC-specific prefixes in the SoC specific code.

Signed-off-by: Carlo Caione <ccaione@baylibre.com>
Change-Id: Ic983ef70b0ef23f95088dd8df488d8c42c3bc030
diff --git a/plat/amlogic/gxl/gxl_def.h b/plat/amlogic/gxl/gxl_def.h
index 2a1c8d3..3b604a6 100644
--- a/plat/amlogic/gxl/gxl_def.h
+++ b/plat/amlogic/gxl/gxl_def.h
@@ -44,7 +44,7 @@
 /* Mailboxes */
 #define AML_MHU_SECURE_SCP_TO_AP_PAYLOAD	UL(0xD9013800)
 #define AML_MHU_SECURE_AP_TO_SCP_PAYLOAD	UL(0xD9013A00)
-#define GXBB_PSCI_MAILBOX_BASE			UL(0xD9013F00)
+#define AML_PSCI_MAILBOX_BASE			UL(0xD9013F00)
 
 // * [	 1K]	0xD901_3800 - 0xD901_3BFF	Secure Mailbox (3)
 // * [	 1K]	0xD901_3400 - 0xD901_37FF	High Mailbox (2) *
@@ -90,7 +90,7 @@
 
 #define GXBB_SYS_CPU_CFG7			UL(0xC8834664)
 
-#define GXBB_AO_RTI_STATUS_REG3			UL(0xDA10001C)
+#define AML_AO_RTI_STATUS_REG3			UL(0xDA10001C)
 #define GXBB_AO_RTI_SCP_STAT			UL(0xDA10023C)
 #define GXBB_AO_RTI_SCP_READY_OFF		U(0x14)
 #define GXBB_A0_RTI_SCP_READY_MASK		U(3)