apple/imac52: add mainboard

Add Imac5,2 based on macbook2,1 port.

Change-Id: I34c8313c32920b02a2b964d8718e5b2b6b5a6820
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/16638
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
diff --git a/src/mainboard/apple/macbook21/Kconfig b/src/mainboard/apple/macbook21/Kconfig
index e653c08..ebf3954 100644
--- a/src/mainboard/apple/macbook21/Kconfig
+++ b/src/mainboard/apple/macbook21/Kconfig
@@ -1,4 +1,4 @@
-if BOARD_APPLE_MACBOOK11 || BOARD_APPLE_MACBOOK21
+if BOARD_APPLE_MACBOOK11 || BOARD_APPLE_MACBOOK21 || BOARD_APPLE_IMAC52
 
 config BOARD_SPECIFIC_OPTIONS # dummy
 	def_bool y