modules: Update trusted-firmware-m for picolibc

This adds linker script bits and compiler options so that
trusted-firmware-m will build with picolibc.

This has not been merged to the Zephyr trusted-firmware-m repository yet:

https://github.com/zephyrproject-rtos/trusted-firmware-m/pull/134



Signed-off-by: Keith Packard <keithp@keithp.com>