Cleanup: fix "MHz" spelling

Signed-off-by: Wolfgang Denk <wd@denx.de>
diff --git a/board/amcc/yucca/cmd_yucca.c b/board/amcc/yucca/cmd_yucca.c
index bd42c5d..d969860 100644
--- a/board/amcc/yucca/cmd_yucca.c
+++ b/board/amcc/yucca/cmd_yucca.c
@@ -69,7 +69,7 @@
 		chip = IIC0_ALT_BOOTPROM_ADDR;
 
 	do {
-		printf("enter sys clock frequency 33 or 66 Mhz or quit to abort\n");
+		printf("enter sys clock frequency 33 or 66 MHz or quit to abort\n");
 		nbytes = readline (" ? ");
 
 		if (strcmp(console_buffer, "quit") == 0)
@@ -85,12 +85,12 @@
 
 	do {
 		if (strcmp(sysClock, "66") == 0) {
-			printf("enter cpu clock frequency 400, 533 Mhz or quit to abort\n");
+			printf("enter cpu clock frequency 400, 533 MHz or quit to abort\n");
 		} else {
 #ifdef	CONFIG_STRESS
-			printf("enter cpu clock frequency 400, 500, 533, 667 Mhz or quit to abort\n");
+			printf("enter cpu clock frequency 400, 500, 533, 667 MHz or quit to abort\n");
 #else
-			printf("enter cpu clock frequency 400, 500, 533 Mhz or quit to abort\n");
+			printf("enter cpu clock frequency 400, 500, 533 MHz or quit to abort\n");
 #endif
 		}
 		nbytes = readline (" ? ");
@@ -130,11 +130,11 @@
 	} else {
 		do {
 			if (strcmp(cpuClock, "400") == 0)
-				printf("enter plb clock frequency 100, 133 Mhz or quit to abort\n");
+				printf("enter plb clock frequency 100, 133 MHz or quit to abort\n");
 
 #ifdef	CONFIG_STRESS
 			if (strcmp(cpuClock, "667") == 0)
-				printf("enter plb clock frequency 133, 166 Mhz or quit to abort\n");
+				printf("enter plb clock frequency 133, 166 MHz or quit to abort\n");
 
 #endif
 			nbytes = readline (" ? ");
@@ -160,7 +160,7 @@
 	}
 
 	do {
-		printf("enter Pci-X clock frequency 33, 66, 100 or 133 Mhz or quit to abort\n");
+		printf("enter Pci-X clock frequency 33, 66, 100 or 133 MHz or quit to abort\n");
 		nbytes = readline (" ? ");
 
 		if (strcmp(console_buffer, "quit") == 0)
@@ -176,10 +176,10 @@
 
 	} while (nbytes == 0);
 
-	printf("\nsys clk   = %sMhz\n", sysClock);
-	printf("cpu clk   = %sMhz\n", cpuClock);
-	printf("plb clk   = %sMhz\n", plbClock);
-	printf("Pci-X clk = %sMhz\n", pcixClock);
+	printf("\nsys clk   = %s MHz\n", sysClock);
+	printf("cpu clk   = %s MHz\n", cpuClock);
+	printf("plb clk   = %s MHz\n", plbClock);
+	printf("Pci-X clk = %s MHz\n", pcixClock);
 
 	do {
 		printf("\npress [y] to write I2C bootstrap \n");