Utilities: Fix a typo issue in AcpiUtValidInternalObject().

No functional changes.  Lv Zheng.

Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Utilities: Cleanup obsoleted global variables.

This patch deletes global variable declarations that are no longer used by
ACPICA.  No functional changes.  Lv Zheng.

Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Utilities: Deploy ACPI_DEBUGGER_EXEC for ACPI_DEBUGGER enabled code in utglobal.c.

This patch deploys ACPI_DEBUGGER_EXEC usage to utglobal.c to reduce "ifdef"
of ACPI_DEBUGGER.  No functional changes.  Lv Zheng.

Signed-off-by: Lv Zheng <lv.zheng@intel.com>
AcpiDump: Fix code issue in invoking fread in the loop.

This patch fixes an issue that the while loop is not needed as fread()
should return exact the bytes of expected.

The patch is tested by runing diff against the output of "-c" mode and
the normal mode, and only finds the following differences:
1. table addresses: the "-c" mode will always fill 0x0000000000000000 for
                    the address.
2. RSDP/RSDT/XSDT: there is no generation of such tables for "-c" mode.
So the test result shows the fix is valid.  Lv Zheng.

Signed-off-by: Lv Zheng <lv.zheng@intel.com>