Update linker layout scripts for Nano S+, Stax, Flex so they match with C SDK ones

Author: yogh333

ledger_secure_sdk_sys/flex_layout.ld

@@ -2,7 +2,7 @@ MEMORY
 {
   FLASH   (rx)  : ORIGIN = 0xc0de0000, LENGTH = 400K
   DATA    (r)   : ORIGIN = 0xc0de0000, LENGTH = 400K
-  SRAM    (rwx) : ORIGIN = 0xda7a0000, LENGTH = 44K
+  SRAM    (rwx) : ORIGIN = 0xda7a0000, LENGTH = 36K
 }
 
 PAGE_SIZE  = 512;

ledger_secure_sdk_sys/nanosplus_layout.ld

@@ -2,7 +2,7 @@ MEMORY
 {
   FLASH   (rx)  : ORIGIN = 0xc0de0000, LENGTH = 400K
   DATA    (r)   : ORIGIN = 0xc0de0000, LENGTH = 400K
-  SRAM    (rwx) : ORIGIN = 0xda7a0000, LENGTH = 44K
+  SRAM    (rwx) : ORIGIN = 0xda7a0000, LENGTH = 40K
 }
 
 PAGE_SIZE  = 512;

ledger_secure_sdk_sys/stax_layout.ld

@@ -2,7 +2,7 @@ MEMORY
 {
   FLASH   (rx)  : ORIGIN = 0xc0de0000, LENGTH = 400K
   DATA    (r)   : ORIGIN = 0xc0de0000, LENGTH = 400K
-  SRAM    (rwx) : ORIGIN = 0xda7a0000, LENGTH = 44K
+  SRAM    (rwx) : ORIGIN = 0xda7a0000, LENGTH = 36K
 }
 
 PAGE_SIZE  = 512;