Update Android SDK/JDK setting tooltips to match RDOC_CONFIG

[w-pearson]

Previously, the SDK tooltip was inconsistent between the label and the text field/button, with the latter incorrectly saying the location of adb.exe should be used. There also was no description at all for the JDK option.

I've copied the descriptions from the RDOC_CONFIG macros in android_tools.cpp, which should make it easier to set these correctly.

renderdoc/renderdoc/android/android_tools.cpp

Lines 31 to 37 in 0ff1c66

	RDOC_CONFIG(rdcstr, Android_SDKDirPath, "",
	"The location of the root of the Android SDK. This path "
	"should contain folders such as build-tools and platform-tools.");
	RDOC_CONFIG(rdcstr, Android_JDKDirPath, "",
	"The location of the root of the Java JDK. This path "
	"should contain folders such as bin and lib.");