Fix for .ramcode CI issues.

Author: dgarske

src/boot_ppc.c

@@ -31,10 +31,12 @@ extern unsigned int __bss_end__;
 extern unsigned int _stored_data;
 extern unsigned int _start_data;
 extern unsigned int _end_data;
+#ifdef RAM_CODE
 /* .ramcode section (RAMFUNCTION) - may be in separate memory region */
 extern unsigned int _stored_ramcode;
 extern unsigned int _start_ramcode;
 extern unsigned int _end_ramcode;
+#endif
 
 extern void main(void);
 extern void hal_early_init(void);
@@ -130,6 +132,7 @@ void boot_entry_C(void)
 
     uart_putc_early('I');   /* checkpoint I: entered boot_entry_C */
 
+#ifdef RAM_CODE
     /* Copy .ramcode section FIRST - to CPC SRAM which is already available.
      * This makes RAMFUNCTION code (memcpy, memmove) available before DDR.
      * Use volatile to prevent compiler from transforming to memcpy call. */
@@ -150,6 +153,7 @@ void boot_entry_C(void)
             (uint32_t)&_end_ramcode - (uint32_t)&_start_ramcode);
     }
 #endif
+#endif /* RAM_CODE */
 
     uart_putc_early('J');   /* checkpoint J: .ramcode done, entering hal_early_init */