sandbox: Adjust the bloblist default address

Move this down to provide more space for the bloblist.
Signed-off-by: NSimon Glass <sjg@chromium.org>

common/Kconfig

@@ -724,7 +724,7 @@ config BLOBLIST_SIZE
 config BLOBLIST_ADDR
 	hex "Address of bloblist"
 	depends on BLOBLIST
-	default 0xe000 if SANDBOX
+	default 0xc000 if SANDBOX
 	help
 	  Sets the address of the bloblist, set up by the first part of U-Boot
 	  which runs. Subsequent U-Boot stages typically use the same address.

doc/arch/sandbox.rst

@@ -510,7 +510,7 @@ that are mapped into that memory:
 Addr      Config                     Usage
 =======   ========================   ===============================
       0   CONFIG_SYS_FDT_LOAD_ADDR   Device tree
-   e000   CONFIG_BLOBLIST_ADDR       Blob list
+   c000   CONFIG_BLOBLIST_ADDR       Blob list
   10000   CONFIG_MALLOC_F_ADDR       Early memory allocation
   f0000   CONFIG_PRE_CON_BUF_ADDR    Pre-console buffer
  100000   CONFIG_TRACE_EARLY_ADDR    Early trace buffer (if enabled). Also used