pbio/platform/ev3/platform.ld: combine NOLOAD sections

We already have a .noinit section, so we can drop all of the other
named NOLOAD sections and just use that one.

Author: dlech

lib/pbio/drv/display/display_ev3.c

@@ -134,7 +134,7 @@ PROCESS(pbdrv_display_ev3_init_process, "st7586s");
  *
  * Non-atomic updated by the application are allowed.
  */
-static uint8_t pbdrv_display_user_frame[PBDRV_CONFIG_DISPLAY_NUM_ROWS][PBDRV_CONFIG_DISPLAY_NUM_COLS] __attribute__((section(".pbdrv_display_user_frame"), used));
+static uint8_t pbdrv_display_user_frame[PBDRV_CONFIG_DISPLAY_NUM_ROWS][PBDRV_CONFIG_DISPLAY_NUM_COLS] __attribute__((section(".noinit"), used));
 
 /**
  * Flag to indicate that the user frame has been updated and needs to be
@@ -164,7 +164,7 @@ static bool pbdrv_display_user_frame_update_requested = false;
  * Even in monochrome mode, you can only have 3 pixels per byte, so there is no
  * savings in using it. We might as well support gray scale.
  */
-static uint8_t st7586s_send_buf[ST7586S_NUM_COL_TRIPLETS * ST7586S_NUM_ROWS] __attribute__((section(".st7586s_send_buf"), used));
+static uint8_t st7586s_send_buf[ST7586S_NUM_COL_TRIPLETS * ST7586S_NUM_ROWS] __attribute__((section(".noinit"), used));
 
 /**
  * Encode a triplet of pixels into a single byte in the format descrived above.

lib/pbio/platform/ev3/platform.ld

@@ -45,14 +45,6 @@ SECTIONS
         _pru0_end = .;
     } >DDR
 
-    .display_frames (NOLOAD) :
-    {
-        . = ALIGN(4);
-        *(.pbdrv_display_user_frame)
-        . = ALIGN(4);
-        *(.st7586s_send_buf)
-    } > DDR
-
     /* Uninitialized (not zeroed at startup) data section */
 
     .noinit (NOLOAD) :