rk1808: bl31: update version to v1.02

Build from ATF commit:
    4a026ed plat: rk1808: plat_ld.s: delete sram section
update features:
    1) 4a026ed plat: rk1808: plat_ld.s: delete sram section
    2) d891747 plat: rk1808: suspend: wakeup directly if gpio0_int arise before wfi
    3) 502f7f1 plat: rk1808: suspend: fix power_domain_suspend flow
    4) b0e2514 plat: rk1808: add atags serial and bl31 memory layout
    5) 5ebd1cf rockchip: Add RK1808 suppor

Change-Id: I9a3d338964cb096a32497fd8720f09e879373e99
Signed-off-by: XiaoDong Huang <derrick.huang@rock-chips.com>

RKTRUST/RK1808TRUST.ini

@@ -5,7 +5,7 @@ MINOR=0
 SEC=0
 [BL31_OPTION]
 SEC=1
-PATH=bin/rk1x/rk1808_bl31_v1.01.elf
+PATH=bin/rk1x/rk1808_bl31_v1.02.elf
 ADDR=0x00010000
 [BL32_OPTION]
 SEC=0