rk3368h: bl31: update version to v2.21

Build from ATF commit:
    aec9b0b plat: rk3368: suspend: don't do pwm_remotectl_prepare if gpio0_int arise
update feature:
    aec9b0b plat: rk3368: suspend: don't do pwm_remotectl_prepare if gpio0_int arise
    a47adc7 plat: rk3368: suspend: fix pvtm init flow
    b0cf3d1 rockchip: sram: add pmu_sram section defines
    c2b0155 plat: rockchip: move the function about dram spec timing to common
    e1048e0 rockchip: console: enable/disable depends on atags serial
    1f45fd9 rockchip: atags: compatible old preloader without atags support
    ef42cbc plat: rockchip: support use preloader and kernel serial
    3a118e9 plat: rk3368: add include path of parameter
    de92d92 plat: rockchip: add rk_atags support
    e52f4a9 rockchip: move pwm_remotectl driver to public directory
    43a2da1 rockchip: sip: allow SLT to access all memory region
    d964b6b rockchip: ddr_parameter: fix param layout description error
    6ce491d common: tf_printf: add timestamp to last log
    c7e8e08 plat: rockchip: support timestamp for last log
    4d91fc3 plat: rockchip: add last log support
    b3ee1d2 rockchip_exceptions: fiq debugger support aarch32 kernel
    ca9181a rockchip_exceptions: clean up of fiq debugger
    4654e39 plat: rockchip: support bl32/bl33 fixup by platform
    9f2cf03 rockchip: common: make warmboot address 64 align optional
    65aa5ce rockchip: fix bugs of disable uart fiq
    824db84 rockchip: disable uart fiq when cpu/systerm resume
    69d9b56 bl31: execute bl32_init() dynamically
    c2d3c92 rockchip: sram: add sram_printdec_align()
    a533f80 rockchip: ddr_parameter: improve param layout description
    11d032b rockchip: pmu sram: support cpu warm boot from pmu sram

Change-Id: I688f4bbfa580214a826312ac7d9e613f9c0c111c
Signed-off-by: XiaoDong Huang <derrick.huang@rock-chips.com>

RKTRUST/PX5KERNEL4.4TRUST.ini

@@ -7,7 +7,7 @@ PATH=tools/rk_tools/bin/rk33/rk3368_bl30_v2.14.bin
 ADDR=0x00080000
 [BL31_OPTION]
 SEC=1
-PATH=tools/rk_tools/bin/rk33/rk3368h_bl31_v2.20.elf
+PATH=tools/rk_tools/bin/rk33/rk3368h_bl31_v2.21.elf
 ADDR=0x00010000
 [BL32_OPTION]
 SEC=1

RKTRUST/RK3368BOXTRUST.ini

@@ -7,7 +7,7 @@ PATH=tools/rk_tools/bin/rk33/rk3368_bl30_v2.14.bin
 ADDR=0x00080000
 [BL31_OPTION]
 SEC=1
-PATH=tools/rk_tools/bin/rk33/rk3368h_bl31_v2.20.elf
+PATH=tools/rk_tools/bin/rk33/rk3368h_bl31_v2.21.elf
 ADDR=0x00010000
 [BL32_OPTION]
 SEC=1

RKTRUST/RK3368HTRUST.ini

@@ -7,7 +7,7 @@ PATH=tools/rk_tools/bin/rk33/rk3368_bl30_v2.14.bin
 ADDR=0x00080000
 [BL31_OPTION]
 SEC=1
-PATH=tools/rk_tools/bin/rk33/rk3368h_bl31_v2.20.elf
+PATH=tools/rk_tools/bin/rk33/rk3368h_bl31_v2.21.elf
 ADDR=0x00010000
 [BL32_OPTION]
 SEC=1