ARM: rpi: rename rpi_b to rpi

The U-Boot port runs on a variety of RPi models, not just the B. So,
rename the port to something slightly more generic.

Signed-off-by: Stephen Warren <swarren@wwwdotorg.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Simon Glass <sjg@chromium.org>

board/raspberrypi/rpi/Kconfig

@@ -1,7 +1,7 @@
-if TARGET_RPI_B
+if TARGET_RPI
 
 config SYS_BOARD
-	default "rpi_b"
+	default "rpi"
 
 config SYS_VENDOR
 	default "raspberrypi"
@@ -10,6 +10,6 @@ config SYS_SOC
 	default "bcm2835"
 
 config SYS_CONFIG_NAME
-	default "rpi_b"
+	default "rpi"
 
 endif

board/raspberrypi/rpi/MAINTAINERS

@@ -0,0 +1,6 @@
+RPI BOARD
+M:	Stephen Warren <swarren@wwwdotorg.org>
+S:	Maintained
+F:	board/raspberrypi/rpi/
+F:	include/configs/rpi.h
+F:	configs/rpi_defconfig

board/raspberrypi/rpi/Makefile

@@ -12,4 +12,4 @@
 # GNU General Public License for more details.
 #
 
-obj-y	:= rpi_b.o
+obj-y	:= rpi.o

board/raspberrypi/rpi_b/MAINTAINERS

@@ -1,6 +0,0 @@
-RPI_B BOARD
-M:	Stephen Warren <swarren@wwwdotorg.org>
-S:	Maintained
-F:	board/raspberrypi/rpi_b/
-F:	include/configs/rpi_b.h
-F:	configs/rpi_b_defconfig