Add comment in the v850's crt0.S file noting that separate LMA and VMA...

Add comment in the v850's crt0.S file noting that separate LMA and VMA addresses for data sections are not currently supported.

libgloss/v850/crt0.S

@@ -24,6 +24,12 @@ _start:
 	movhi	2,		r0,	r6
 	ldsr    r6, 	    	fpsr
 #endif
+	// FIXME: We currently assume that the data sections
+	// are loaded in place - ie that they do not need to
+	// moved from eg ROM into RAM.  If that is not true
+	// then extra code needs to be added here.
+	
+	// Initialise the .bss section.
 	mov     hilo(_edata),	r6
 	mov     hilo(_end),	r7
 .L0:
@@ -52,6 +58,9 @@ _start:
 	movhi   hi(__gp),	r0,	gp
 	movea   lo(__gp),	gp,	gp
 
+	// FIXME: See note about not moving the data sections above.
+	
+	// Initialise the .bss section.
 	movhi   hi(_edata),	r0,	r6
 	movea   lo(_edata),	r6,	r6
 	movhi   hi(_end),	r0,	r7