package/gdb: add gdb 7.7.x (7.7.1) and 7.6.x (7.6.2)

To prep for powerpc64le, we also disable gdb prior to 7.7.1 on
powerpc64le.

The default gdb on powerpc64le is set to 7.7.

Signed-off-by: Cody P Schafer <cody@linux.vnet.ibm.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/gdb/Config.in.host

@@ -19,6 +19,7 @@ choice
 	depends on !BR2_microblaze
 	default BR2_GDB_VERSION_6_6 if BR2_bfin
 	default BR2_GDB_VERSION_6_7_1_AVR32_2_1_5 if BR2_avr32
+	default BR2_GDB_VERSION_7_7 if BR2_powerpc64le
 	default BR2_GDB_VERSION_7_5
 	help
 	  Select the version of gdb you wish to use.
@@ -33,10 +34,18 @@ choice
 
 	config BR2_GDB_VERSION_7_4
 		bool "gdb 7.4.x"
-		depends on !BR2_bfin
+		depends on !BR2_bfin && !BR2_powerpc64le
 
 	config BR2_GDB_VERSION_7_5
 		bool "gdb 7.5.x"
+		depends on !BR2_bfin && !BR2_powerpc64le
+
+	config BR2_GDB_VERSION_7_6
+		bool "gdb 7.6.x"
+		depends on !BR2_bfin && !BR2_powerpc64le
+
+	config BR2_GDB_VERSION_7_7
+		bool "gdb 7.7.x"
 		depends on !BR2_bfin
 
 endchoice
@@ -54,4 +63,6 @@ config BR2_GDB_VERSION
 	default "arc-4.8-R3" if BR2_arc
 	default "6be65fb56ea6694a9260733a536a023a1e2d4d57" if BR2_microblaze
 	default "7.4.1"    if BR2_GDB_VERSION_7_4
-	default "7.5.1"    if BR2_GDB_VERSION_7_5 || !BR2_PACKAGE_HOST_GDB
+	default "7.5.1"    if BR2_GDB_VERSION_7_5
+	default "7.6.2"    if BR2_GDB_VERSION_7_6 || !BR2_PACKAGE_HOST_GDB
+	default "7.7.1"    if BR2_GDB_VERSION_7_7 || BR2_powerpc64le