GPU: Implemented the F2I_R shader instruction.

Revert "Port citra #3616"

GPU: Corrected the branch targets for the shader bra instruction.

gl_shader_decompiler: Implement SHL instruction.

GPU: Implemented predicated exit instructions in the shader programs.

gl_shader_decompiler: Implement PredCondition::NotEqual.

GPU: Implement the ISCADD shader instruction.

GPU: Implemented the LOP32I instruction.

GPU: Implemented the ISETP_R and ISETP_C instructions

GPU: Corrected the FSET and I2F instructions.

GPU: Partially implemented the bra shader instruction

GPU: Calculate the correct viewport dimensions based on the scale and translate registers.

This is how nouveau calculates the viewport width and height. For some reason some games set 0xFFFF in the VIEWPORT_HORIZ and VIEWPORT_VERT registers, maybe those are a misnomer and actually refer to something else?

Add checks for OpenGL extension support

GLCache: Corrected a mismatch between storing compressed sizes and verifying the uncompressed alignment in GetSurface.

* Add some IoctlCommand with their params to nvhost_gpu

* fix clang-format

* delete trailing whitespace

* fix some clang-format

* delete one other trailing whitespace

* last clang-format fix

GLCache: Corrected a mismatch between storing compressed sizes and verifying the uncompressed alignment in GetSurface.

am: Implement PopOutData, and various fixes.

GPU: Use explicit types when retrieving the uniform values for fsetp/fset and isetp instead of the type of an invalid output register.

Port citra #3616