Remove deprecated register

In c++11, register has been deprecated, and
all of skia is now built as gnu++11

From the documentation:
A register specifier is a hint to the implementation
that the variable so declared will be heavily used.
[ Note: The hint can be ignored and in most implementations
it will be ignored if the address of the variable is taken.
This use is deprecated (see D.2) ]

Change-Id: Ic7432b034037fea273c4a9c09f0ca4a728f7eb88
Signed-off-by: DHOMD <DHO@dho.im>
Skia: Fix path to OpenGL Headers

PS2: make it depending on nothing
This patch will change the path to point to the correct location
of the OpenGL Headers. The path has changed to
frameworks/native/opengl/include/.

Change-Id: Ib85e3d9e6df530f12605306eb0bad7c7b5799dfe

Conflicts:
	Android.mk

Change-Id: I2f93727e023cfa009a1bb83f72185325da252bb0