ti-dm: Update firmware for am62x and am62ax

Update the following ti-dm firmware
- 08.06.00.04 for am62x (MCU+)
- 08.06.03.05 for am62ax (PDK)

Major changes compared to previous version:
- AM62x: LPM stability fix

MD5 Checksum:
675b9f2dd9b2e145f685ff18e0585b66  ti-dm/am62axx/ipc_echo_testb_mcu1_0_release_strip.xer5f
e4412d73fdeb399400124ee3b5acb7a9  ti-dm/am62xx/ipc_echo_testb_mcu1_0_release_strip.xer5f

Signed-off-by: Vishal Mahaveer <vishalm@ti.com>