renesas: rzg: Add support to identify EK874 RZ/G2E board

Add support to identify Silicon Linux RZ/G2E evaluation kit (EK874).

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Biju Das <biju.das.jz@bp.renesas.com>
Change-Id: Id7bdbc9b0d25aa9af496d58d4bd5055579edc104
diff --git a/plat/renesas/common/bl2_cpg_init.c b/plat/renesas/common/bl2_cpg_init.c
index 0c2fe88..ba8e53b 100644
--- a/plat/renesas/common/bl2_cpg_init.c
+++ b/plat/renesas/common/bl2_cpg_init.c
@@ -34,7 +34,7 @@
 static void bl2_system_cpg_init_v3m(void);
 #endif
 
-#if (RCAR_LSI == RCAR_AUTO) || (RCAR_LSI == RCAR_E3)
+#if (RCAR_LSI == RCAR_AUTO) || (RCAR_LSI == RCAR_E3) || (RCAR_LSI == RZ_G2E)
 static void bl2_realtime_cpg_init_e3(void);
 static void bl2_system_cpg_init_e3(void);
 #endif
@@ -58,7 +58,7 @@
 #if (RCAR_LSI == RCAR_D3)
 	reset_cr2 = 0x00000000U;
 	stop_cr2 = 0xFFFFFFFFU;
-#elif (RCAR_LSI == RCAR_E3)
+#elif (RCAR_LSI == RCAR_E3) || (RCAR_LSI == RZ_G2E)
 	reset_cr2 = 0x10000000U;
 	stop_cr2 = 0xEFFFFFFFU;
 #else
@@ -255,7 +255,7 @@
 }
 #endif
 
-#if (RCAR_LSI == RCAR_AUTO) || (RCAR_LSI == RCAR_E3)
+#if (RCAR_LSI == RCAR_AUTO) || (RCAR_LSI == RCAR_E3) || (RCAR_LSI == RZ_G2E)
 static void bl2_realtime_cpg_init_e3(void)
 {
 	/* Realtime Module Stop Control Registers */
@@ -370,7 +370,7 @@
 		bl2_realtime_cpg_init_m3n();
 #elif RCAR_LSI == RCAR_V3M
 		bl2_realtime_cpg_init_v3m();
-#elif RCAR_LSI == RCAR_E3
+#elif RCAR_LSI == RCAR_E3 || RCAR_LSI == RZ_G2E
 		bl2_realtime_cpg_init_e3();
 #elif RCAR_LSI == RCAR_D3
 		bl2_realtime_cpg_init_d3();
@@ -416,7 +416,7 @@
 	bl2_system_cpg_init_m3n();
 #elif RCAR_LSI == RCAR_V3M
 	bl2_system_cpg_init_v3m();
-#elif RCAR_LSI == RCAR_E3
+#elif RCAR_LSI == RCAR_E3 || RCAR_LSI == RZ_G2E
 	bl2_system_cpg_init_e3();
 #elif RCAR_LSI == RCAR_D3
 	bl2_system_cpg_init_d3();