micro-ecc: move into booloader directory

.gitmodules

@@ -10,8 +10,8 @@
 	path = components/bt/lib
 	url = https://github.com/espressif/esp32-bt-lib.git
 
-[submodule "components/micro-ecc/micro-ecc"]
-	path = components/micro-ecc/micro-ecc
+[submodule "components/bootloader/subproject/components/micro-ecc/micro-ecc"]
+	path = components/bootloader/subproject/components/micro-ecc/micro-ecc
 	url = https://github.com/kmackay/micro-ecc.git
 
 [submodule "components/coap/libcoap"]