db845c: installer: Update bootloader binaries and flashing scripts

Update db845c bootloader binaries to support Android boot image
header v2. Downloaded (build #33) from here:
https://snapshots.linaro.org/96boards/dragonboard845c/linaro/rescue/33/

Build description:
* Build URL:
    https://ci.linaro.org/job/lt-qcom-bootloader-dragonboard845c/33/
* Linux proprietary bootloaders package:
    http://releases.linaro.org/96boards/dragonboard845c/qualcomm/firmware/RB3_firmware_20190529180356-v4.zip
* ABL source code:
    https://git.linaro.org/landing-teams/working/qualcomm/abl.git/commit/?id=fe1eaeb15947e1fec986acbe80f29debbb650efb
* Partition table:
    https://git.linaro.org/landing-teams/working/qualcomm/db-boot-tools.git/tree/dragonboard845c/aosp/partition.xml?id=0e8dde66a17cad7040b7f21f9e752fc1ee13006d

Also update flashing script to create boot.img with header v2
and make recovery.sh executable.

Change-Id: I5f0917b1ca78ca981460e4b5081ee074601feec4
Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
23 files changed