fix: Secure boot (ECDSA) build failure for C6 rev0 target

Closes #15856

Author: mahavirj

components/bootloader_support/CMakeLists.txt

@@ -65,6 +65,9 @@ if(CONFIG_APP_BUILD_TYPE_APP_2NDBOOT)
 endif()
 
 list(APPEND srcs "src/bootloader_sha.c")
+if(CONFIG_ESP_ROM_REV0_HAS_NO_ECDSA_INTERFACE)
+    list(APPEND srcs "src/${IDF_TARGET}/bootloader_ecdsa.c")
+endif()
 
 if(BOOTLOADER_BUILD OR CONFIG_APP_BUILD_TYPE_RAM)
     set(include_dirs "include" "bootloader_flash/include"
@@ -82,10 +85,6 @@ if(BOOTLOADER_BUILD OR CONFIG_APP_BUILD_TYPE_RAM)
         list(APPEND srcs "src/bootloader_utility_tee.c")
     endif()
     list(APPEND priv_requires hal)
-    if(CONFIG_ESP_ROM_REV0_HAS_NO_ECDSA_INTERFACE)
-        list(APPEND srcs
-            "src/${IDF_TARGET}/bootloader_ecdsa.c")
-    endif()
 else()
     set(include_dirs "include" "bootloader_flash/include")
     set(priv_include_dirs "private_include")