Correct flash memory layouts

Document the actual values of the flash partition offsets and update
linker scripts to match.

bootloader.ld

@@ -35,7 +35,7 @@ SEARCH_DIR(.)
 /* Memory Spaces Definitions */
 MEMORY
 {
-  /* Reserve (at least) 32 bytes of space for factory install random bytes */
+  /* Reserve 32 bytes of space for factory install random bytes */
   rom      (rx)  : ORIGIN = 0x00000000, LENGTH = 0x0000DFE0
   ram      (rwx) : ORIGIN = 0x20000000, LENGTH = 0x00040000
   bkupram  (rwx) : ORIGIN = 0x47000000, LENGTH = 0x00002000

firmware.ld

@@ -35,7 +35,7 @@ SEARCH_DIR(.)
 /* Memory Spaces Definitions */
 MEMORY
 {
-  rom      (rx)  : ORIGIN = 0x00010000, LENGTH = 0x000F0000
+  rom      (rx)  : ORIGIN = 0x00010000, LENGTH = 0x000D8000
   ram      (rwx) : ORIGIN = 0x20000000, LENGTH = 0x00040000
   bkupram  (rwx) : ORIGIN = 0x47000000, LENGTH = 0x00002000
   qspi     (rwx) : ORIGIN = 0x04000000, LENGTH = 0x01000000

src/flags.h

@@ -25,6 +25,36 @@
 
 #include "memory/smarteeprom.h"
 
+//
+// Memory layout flash
+//
+// +-------------+ 0xFA000
+// |  Boot data  |
+// |  (0x02000)  |
+// |             |
+// +-------------+ 0xF8000
+// |  App data   |
+// |  (0x10000)  |
+// |             |
+// +-------------+ 0xE8000
+// |     App     |
+// |  (0xD8000)  |
+// |             |
+// +-------------+ 0x10000
+// | Shared data |
+// |  (0x02000)  |
+// |             |
+// +-------------+ 0x0E000
+// |   Factory   |
+// |  Randomness |
+// |  (0x00020)  |
+// +-------------+ 0x0DFE0
+// |    Boot     |
+// |  (0x0DFE0)  |
+// |             |
+// +-------------+ 0x00000
+//
+
 // The total size of the flash is 1MB (2048 pages).
 #define FLASH_END (2048 * FLASH_PAGE_SIZE)