boards: lm3s6965-ek: Fix to load ELF applications for qemu-protected

Summary:
- I noticed that error happens in loading nettest elf application.
- This commit fixes this issue by adding SYMTAB to the NSH
  as well as adjusting some parameters in CONFIG_ELF_XXX
- Also, CONFIG_EXAMPLES_HELLO is changed from y to m for testing.

Impact:
- lm3s6965-ek:qemu-protected only

Tested:
- Tested with qemu-6.2

Signed-off-by: Masayuki Ishikawa <Masayuki.Ishikawa@jp.sony.com>

boards/arm/tiva/lm3s6965-ek/configs/qemu-protected/defconfig

@@ -17,7 +17,6 @@ CONFIG_ARCH_CHIP_LM=y
 CONFIG_ARCH_STACKDUMP=y
 CONFIG_ARM_MPU=y
 CONFIG_ARM_SEMIHOSTING_HOSTFS=y
-CONFIG_BOARDCTL_APP_SYMTAB=y
 CONFIG_BOARDCTL_ROMDISK=y
 CONFIG_BOARD_LOOPSPERMSEC=4531
 CONFIG_BUILD_PROTECTED=y
@@ -30,9 +29,11 @@ CONFIG_DEBUG_INFO=y
 CONFIG_DEBUG_SYMBOLS=y
 CONFIG_DEBUG_WARN=y
 CONFIG_ELF=y
+CONFIG_ELF_RELOCATION_BUFFERCOUNT=64
+CONFIG_ELF_SYMBOL_CACHECOUNT=64
 CONFIG_EXAMPLES_ELF=y
 CONFIG_EXAMPLES_ELF_DEVPATH="/dev/ram5"
-CONFIG_EXAMPLES_HELLO=y
+CONFIG_EXAMPLES_HELLO=m
 CONFIG_EXAMPLES_MODULE=y
 CONFIG_EXAMPLES_MODULE_DEVPATH="/dev/ram6"
 CONFIG_EXAMPLES_NETTEST=m
@@ -41,7 +42,6 @@ CONFIG_FS_BINFS=y
 CONFIG_FS_HOSTFS=y
 CONFIG_FS_PROCFS=y
 CONFIG_FS_TMPFS=y
-CONFIG_HOST_MACOS=y
 CONFIG_INIT_ENTRYPOINT="nsh_main"
 CONFIG_LIBC_DLFCN=y
 CONFIG_LIBC_ENVPATH=y
@@ -95,6 +95,9 @@ CONFIG_SYSLOG_CONSOLE=y
 CONFIG_SYSTEM_DHCPC_RENEW=y
 CONFIG_SYSTEM_NETDB=y
 CONFIG_SYSTEM_NSH=y
+CONFIG_SYSTEM_NSH_SYMTAB=y
+CONFIG_SYSTEM_NSH_SYMTAB_ARRAYNAME="g_symtab"
+CONFIG_SYSTEM_NSH_SYMTAB_COUNTNAME="g_nsymbols"
 CONFIG_SYSTEM_NTPC=y
 CONFIG_SYSTEM_PING=y
 CONFIG_TASK_NAME_SIZE=24