arch/amebad: remove duplicated definition of type in Kconfig
CONFIG_AMEBAD_RDP_KEY has prompt definition with hex type
so that separated prompt definition is unnecessary.
This commit fixes the mennuconfig warning as shown below:
arch/arm/src/amebad/Kconfig:83:warning: prompt redefined
@@ -79,7 +79,6 @@ config AMEBAD_RDP
If unsure, do not enable this.
config AMEBAD_RDP_KEY
- prompt "Amebad RDP Key"
hex "Amebad RDP Key"
default 2473040ab47c48655a15aa431c4bbb8a
range 00000000000000000000000000000000 ffffffffffffffffffffffffffffffff
