[bsp/renesas]: add ra4e2-eco #6700

Job	Run time
🔍 Summary of Git Diff Changes	38s
RT-Thread Online Packages (STM32F407 RT-Spark)	6m 5s
stm32f0_f1	6m 13s
others_ft32_mm32_acm32	3m 38s
at32_hc32_ht32	4m 54s
stm32l4	10m 0s
RTduino_Arduino Libraries (Raspberry Pico)	8m 31s
stm32_f2_f4	9m 41s
stm32_f7_g0_h7_mp15_u5_h5_wb5	6m 48s
aarch64	1m 10s
nuvoton	4m 23s
Infineon_TI_microchip	6m 29s
gd32_n32_apm32	4m 52s
riscv-none	2m 50s
simulator	56s
mips	1m 6s
ESP32C3	7m 19s
nordic(yml)	6m 58s
riscv64-unknown	1m 33s
xuantie-smart	1m 5s
xuantie	1m 44s
llvm-arm	3m 34s
K230	1m 28s
i386-unknown	1m 2s
hpmicro	55s
arm-none-bsp-smart	2m 31s
nxp_renesas	5m 57s
collect-artifacts	0s
	1h 52m 20s

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