arm64: defconfig: Enable Renesas RZ/G2L GPT config

Enable PWM config for Renesas RZ/G2L GPT as it is populated on the
RZ/G2L and RZ/V2L SMARC EVKs.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/20250424054050.28310-5-biju.das.jz@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

Author: bijudas

arch/arm64/configs/defconfig

@@ -1530,6 +1530,7 @@ CONFIG_PWM_MEDIATEK=m
 CONFIG_PWM_RCAR=m
 CONFIG_PWM_RENESAS_TPU=m
 CONFIG_PWM_ROCKCHIP=y
+CONFIG_PWM_RZG2L_GPT=m
 CONFIG_PWM_RZ_MTU3=m
 CONFIG_PWM_SAMSUNG=y
 CONFIG_PWM_SL28CPLD=m