AVR32: fix build breakage

Remove an unwanted remnant of the recent revert of AVR32/AT91 SPI patches in -mm. Without this patch, the AVR32 build of 2.6.20-rc[34]-mm1 breaks.

---

Index: linux-2.6.20-rc3/arch/avr32/mach-at32ap/at32ap7000.c
===================================================================
@@ -895,7 +895,7 @@
 	&macb0_pclk,
 	&macb1_hclk,
 	&macb1_pclk,
-	&atmel_spi0_mck,
+	&atmel_spi0_pclk,
 	&atmel_spi1_pclk,
 	&lcdc0_hclk,
 	&lcdc0_pixclk,

Actually, this is broken in my tree. Wonder how I managed to do that and not even notice it.

I'll apply this patch and push out a new avr32-arch branch for Andrew. Thanks for testing.

Haavard