New filter "TOOLCHAIN_HAS_NEWLIB == 1" was applied
because of following chain of dependencies:
LOG_MIPI_SYST_ENABLE=y --> CONFIG_MIPI_SYST_LIB --> \
--> REQUIRES_FULL_LIBC --> NEWLIB_LIBC.
Not all compillers announced in Zephyr support NewLib.
Signed-off-by: Nikolay Agishev <agishev@synopsys.com>