RTE_Component can't be included in the assembly file, as it is application header file
(C/C++) therefore assembler fails in this case. If the symbol RTE_CMSIS_RTOS2_RTX5_ARMV8M_NS is
needed, just define it via config. Therefore I am leaving the rest of ifdef _RTE_ there.

CMSIS repo does not support pre-processor defines, hence multiple assembly
files are added for secure/non-secure and floating point tools.
Mbed OS tools support assembly file pre-processing, but the build system
does not support multiple assembly files for each target, hence updating
the assembly files.

1. Patch RTX so irq_cm4f.S files work with no FPU targets
2. Patch RTX so irq_armv8mml.S files to work with and without FPU
2. Patch RTX so irq_armv8mml.S and irq_armv8mbl.S files to work with secure and
   non-secure builds